Cassey Ho: American Fitness Instructor & Fashion Entrepreneur
Verified Macro Creator — Fitness & Fashion DesignFitness Instructor, Fashion Designer, Entrepreneur
A rough, self-shot Pilates video posted in 2009 so her students wouldn't lose touch became YouTube's top fitness channel, then a patented activewear line worn by Taylor Swift and Lizzo.
About Cassey Ho: American Fitness Instructor & Fashion Entrepreneur
Cassey Ho was born in Los Angeles and grew up in the San Francisco Bay Area, the daughter of parents who expected her to become a doctor or lawyer. She went to Whittier College on a full scholarship intending to study medicine, graduating in 2009 with a biology degree, and moved to Boston for a job as a fashion buyer. Missing the Pilates students she taught part-time back home, she posted her first workout video — 'POP Pilates: Total Body Sculpt' — to a new YouTube channel called Blogilates so they could still follow along; the audio and editing were rough, but the comments kept coming. Nine months later she quit the fashion job, taught Pilates classes twelve times a week to cover rent, and kept filming in her spare time. By 2012 the channel had crossed 166,000 subscribers; by 2014, Blogilates was the top fitness channel on YouTube. She launched her first activewear line, Bodypop, in 2014, followed by her apparel brand POPFLEX in 2016, whose patented designs have since been worn by celebrities including Taylor Swift and Lizzo. In 2025 she launched a second, Target-exclusive apparel line under the Blogilates name. She was named to Time's 25 Most Influential People on the Internet in 2017 and has spoken publicly about design patent theft in the fashion industry.
Career Journey
The first Blogilates video
After moving to Boston for a fashion-buyer job, Ho posted her first Pilates video to keep her old students back home engaged. Nine months later she quit the job and taught Pilates 12 times a week while building the channel.
Becoming YouTube's top fitness channel
Blogilates crossed 166,000 subscribers by October 2012 and was reported as YouTube's top-ranked fitness channel by August 2014, averaging almost 8 million monthly views.
Bodypop to POPFLEX
Ho released her first activewear line, Bodypop, in 2014, followed by her own apparel brand POPFLEX in 2016, which has since earned design patents and been worn by celebrities including Taylor Swift and Lizzo.
Time 100 and a Target-exclusive line
Ho was named to Time's 25 Most Influential People on the Internet in 2017. In 2025 she launched a second apparel line, Blogilates, exclusively at Target, while POPFLEX made the Inc. 5000 fastest-growing companies list.
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FAQs
Who is Cassey Ho?
Cassey Ho (born January 16, 1987) is an American fitness instructor, fashion designer and entrepreneur from Los Angeles, best known for founding Blogilates in 2009 and later the patented activewear brand POPFLEX.
What is POPFLEX?
POPFLEX is the activewear brand Cassey Ho launched in 2016 as CEO and head designer. Its patented designs have been worn by celebrities including Taylor Swift and Lizzo, and the company has been named to the Inc. 5000 list of fastest-growing companies.
How can brands work with Cassey Ho?
Through her verified Instagram (@blogilates) or her companies' sites, popflexactive.com and blogilates.com; she does not publicly list a direct booking email.
Latest News
In 2025 Cassey launched a second, Target-exclusive apparel line under the Blogilates name, alongside continuing to design and run POPFLEX, which was named to the Inc. 5000 list of fastest-growing companies in North America.
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