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the theory team
With a partnership of over a decade — Brittney, Cori and Trevor feel grateful for their continued success and to the Bozeman community for their ongoing support and a place to cultivate a creative space for their talented team and guests.
book appointment
online book with vagaro
call 406-586-3198
email appointments@theoryhair.com

Brittney Murphy
Co-owner + Stylist
Prior to Brittney’s twenty years of hair styling and fashion experience, she chased down snow and medals across the world as a ski racer and professional snowboarder. She traces both her fierce and free street style and her dedicated work ethic back to her days spent training for and navigating the snowboarding circuit. As a third-generation hair stylist, Brittney can’t remember a time that she wasn’t drawn to the art of personal style. She founded Theory in 2007, then relocated Theory to downtown Bozeman in 2019, expanding the salon and incorporating her love of fashion with the addition of a clothing and lifestyle boutique. Brittney specializes in cuts and coloring, as well as wedding and editorial looks, marrying her keen eye for individual aesthetics with her precise understanding of color theory to create healthy, nuanced hair color and beauty enhancing styles for her clients.
Dedicated training in the latest techniques and trends remains at the core of Brittney’s professional growth, and she places top priority on continued education for all the talented stylists at Theory. She regularly travels to train, to seek out Theory’s distinct retail products, and to connect with her family and the wider world.
View Bio
Prior to Brittney’s twenty years of hair styling and fashion experience, she chased down snow and medals across the world as a ski racer and professional snowboarder. She traces both her fierce and free street style and her dedicated work ethic back to her days spent training for and navigating the snowboarding circuit. As a third-generation hair stylist, Brittney can’t remember a time that she wasn’t drawn to the art of personal style. She founded Theory in 2007, then relocated Theory to downtown Bozeman in 2019, expanding the salon and incorporating her love of fashion with the addition of a clothing and lifestyle boutique. Brittney specializes in cuts and coloring, as well as wedding and editorial looks, marrying her keen eye for individual aesthetics with her precise understanding of color theory to create healthy, nuanced hair color and beauty enhancing styles for her clients.
Dedicated training in the latest techniques and trends remains at the core of Brittney’s professional growth, and she places top priority on continued education for all the talented stylists at Theory. She regularly travels to train, to seek out Theory’s distinct retail products, and to connect with her family and the wider world.
Cori Soucie
Co-owner + Stylist
Cori balances an eye for trends with an appreciation for classic beauty. In her role as an accomplished hair stylist, she uses this balanced approach to create looks for her clients that are both timeless and relevant. Cori combines a 21-year foundation in technique with her natural intuition for hair coloring and cutting to express her creativity. She loves seeing how even subtle shifts to color or cut can completely change the way a person looks. Giving her clients great hair also gives them self-confidence, and that is Cori’s ultimate goal.
Outside of work, Cori is a nurturer and an explorer. Downtime spent with her family, listening to music and cooking, keeps her renewed. And, while she loves to travel, you won’t find her at famous tourist locales or lounging by the pool. She’ll be wandering the side streets, seeking out the unexpected and beautiful.
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Cori balances an eye for trends with an appreciation for classic beauty. In her role as an accomplished hair stylist, she uses this balanced approach to create looks for her clients that are both timeless and relevant. Cori combines a 21-year foundation in technique with her natural intuition for hair coloring and cutting to express her creativity. She loves seeing how even subtle shifts to color or cut can completely change the way a person looks. Giving her clients great hair also gives them self-confidence, and that is Cori’s ultimate goal.
Outside of work, Cori is a nurturer and an explorer. Downtime spent with her family, listening to music and cooking, keeps her renewed. And, while she loves to travel, you won’t find her at famous tourist locales or lounging by the pool. She’ll be wandering the side streets, seeking out the unexpected and beautiful.
Trevor Soucie
Co-owner + Stylist
Trevor believes that great hair is a person’s best accessory. Equally as important as great hair is self-confidence, and every client that sits in Trevor’s chair receives individualized attention and care, so they leave the salon with both beautiful hair and the confidence to match. For Trevor, hair design is a holistic and spiritual endeavor—combining his creative talents with the ability to help his clients look and feel their absolute best.
Trevor’s haircutting experience can be traced back to his father’s barbershop, where he quickly realized that working with hair was his creative passion. Throughout his 20+ years in the industry, he has opened several successful salons and has been a mentor to many hairstylists, before joining forces with Brittney and his wife, Cori, at Theory. As an accomplished hair stylist and colorist, Trevor specializes in both men’s and women’s hair and has trained throughout the world at some of the industry’s best seminars and workshops. In the salon, he’s always in pursuit of “hair peace, hair love, and hair happiness” and he inspires his fellow stylists to strive for the same.
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Trevor believes that great hair is a person’s best accessory. Equally as important as great hair is self-confidence, and every client that sits in Trevor’s chair receives individualized attention and care, so they leave the salon with both beautiful hair and the confidence to match. For Trevor, hair design is a holistic and spiritual endeavor—combining his creative talents with the ability to help his clients look and feel their absolute best.
Trevor’s haircutting experience can be traced back to his father’s barbershop, where he quickly realized that working with hair was his creative passion. Throughout his 20+ years in the industry, he has opened several successful salons and has been a mentor to many hairstylists, before joining forces with Brittney and his wife, Cori, at Theory. As an accomplished hair stylist and colorist, Trevor specializes in both men’s and women’s hair and has trained throughout the world at some of the industry’s best seminars and workshops. In the salon, he’s always in pursuit of “hair peace, hair love, and hair happiness” and he inspires his fellow stylists to strive for the same.
McCall Dunn
Stylist
After eight years of salon experience in Minneapolis, the mountains and rivers of Montana drew McCall and her family to Bozeman and her talents to the Theory team.
McCall’s approach to styling always begins with dedicated time for careful consultation to understand how a client’s hair relates to their personality and lifestyle. The free-spirited, inviting and inspired nature she brings to her clients creates a space for mindful collaboration. As an Aveda trained stylist, she aims at enhancing her clients’ natural beauty while developing easy maintenance plans for busy and active lives.
Like all of the stylists at Theory, McCall is continuously seeking out industry education. With an infectious laugh and constant smile, she brings joy to everyone around her. You can find McCall hiking in the mountains and spending time with her family.
View Bio
After eight years of salon experience in Minneapolis, the mountains and rivers of Montana drew McCall and her family to Bozeman and her talents to the Theory team.
McCall’s approach to styling always begins with dedicated time for careful consultation to understand how a client’s hair relates to their personality and lifestyle. The free-spirited, inviting and inspired nature she brings to her clients creates a space for mindful collaboration. As an Aveda trained stylist, she aims at enhancing her clients’ natural beauty while developing easy maintenance plans for busy and active lives.
Like all of the stylists at Theory, McCall is continuously seeking out industry education. With an infectious laugh and constant smile, she brings joy to everyone around her. You can find McCall hiking in the mountains, spending time with her family, and keeping Theory’s salon Instagram current.
Ann Kunsak
Stylist
Styling hair since 2003, Ann worked behind the chair in four states before making her way to Bozeman in 2014. She specializes in long hair, balayage, keratin smoothing treatments, and curly haircuts. Ann has worked alongside some of the best artists and educators in the industry to bring passion and continued training to her clients.
Ann is inspired by natural beauty— beauty found around her as she pursues her passions of yoga, hiking, and traveling, and the natural beauty within each of her clients. She loves helping her clients embrace their authentic selves through their hairstyles.
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Styling hair since 2003, Ann worked behind the chair in four states before making her way to Bozeman in 2014. She specializes in long hair, balayage, keratin smoothing treatments, and curly haircuts. Ann has worked alongside some of the best artists and educators in the industry to bring passion and continued training to her clients.
Ann is inspired by natural beauty— beauty found around her as she pursues her passions of yoga, hiking, and traveling, and the natural beauty within each of her clients. She loves helping her clients embrace their authentic selves through their hairstyles.
Taylor Casey
Stylist
For Taylor, there is no single approach to styling hair. Whether it’s a client’s first time in her chair or an established client, each session is an opportunity to be present with them. She listens to their current needs and customizes styles to meet their busy lives. Taylor is passionate about hair cutting and hair coloring, including balayage and fashion colors, and loves curly hair.
Taylor attended the Aveda Institute in Minneapolis immediately after high school, knowing that the intersection of hair and art was her destination. Taylor grew up in Minnesota where she began her career before being called to the mountains of Montana. Taylor’s passion for life, and her career inspire those around her.
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For Taylor, there is no single approach to styling hair. Whether it’s a client’s first time in her chair or an established client, each session is an opportunity to be present with them. She listens to their current needs and customizes styles to meet their busy lives. Taylor is passionate about hair cutting and hair coloring, including balayage and fashion colors, and loves curly hair.
Taylor attended the Aveda Institute in Minneapolis immediately after high school, knowing that the intersection of hair and art was her destination. Taylor grew up in Minnesota where she began her career before being called to the mountains of Montana. Taylor’s passion for life, and her career inspire those around her.

Katie Hornick
Stylist
book / online w/vagaro
instagram / @katiecutthehair
email / kathryn@theoryhair.com
Katie Hornick
Stylist
“How is your hair today?” That has always been Katie’s favorite question upon greeting her guest after getting them comfortable in her chair. She has found through the last decade of diving into hairdressing, that our hair is our greatest accessory and is a very personal thing. Utilizing your face shape, hair type and lifestyle as a formula, she can guide you through significant styling changes with care and confidence, helping you become the best version of yourself.
After starting her career in Minneapolis, MN in 2010, she realized she wasn’t ready to officially give into her midwestern roots. She picked up her things and headed west to Bozeman in 2018 to try life in the mountains. Katie finds a lot of inspiration hiking, biking and hanging in the outdoors as well as jumping on airplanes and jetting off to a new corner of the globe. She finds that it’s important for us as individuals to get out of our comfort zones and into something new. This includes with our hair – and Katie would love to help you dive into something new.
Katie loves putting together a bespoke look for every individual that sits in her chair. Natural looking hair styles and color are her specialty whether that may be a bold ribboned balayage or a blended foil, a short sculpted haircut or offering you the mermaid hair of your dreams through Natural Beaded Row hand tied hair extensions. Katie can help you embrace your natural texture or she can find something new and daring just for your bone structure. She is here for you, just one question away – “How is your hair today?”
View Bio
“How is your hair today?” That has always been Katie’s favorite question upon greeting her guest after getting them comfortable in her chair. She has found through the last decade of diving into hairdressing, that our hair is our greatest accessory and is a very personal thing. Utilizing your face shape, hair type and lifestyle as a formula, she can guide you through significant styling changes with care and confidence, helping you become the best version of yourself.
After starting her career in Minneapolis, MN in 2010, she realized she wasn’t ready to officially give into her midwestern roots. She picked up her things and headed west to Bozeman in 2018 to try life in the mountains. Katie finds a lot of inspiration hiking, biking and hanging in the outdoors as well as jumping on airplanes and jetting off to a new corner of the globe. She finds that it’s important for us as individuals to get out of our comfort zones and into something new. This includes with our hair – and Katie would love to help you dive into something new.
Katie loves putting together a bespoke look for every individual that sits in her chair. Natural looking hair styles and color are her specialty whether that may be a bold ribboned balayage or a blended foil, a short sculpted haircut or offering you the mermaid hair of your dreams through Natural Beaded Row hand tied hair extensions. Katie can help you embrace your natural texture or she can find something new and daring just for your bone structure. She is here for you, just one question away – “How is your hair today?”

Harmony Long
Front of the House