Influencer Kirsten Too Sweet Details How a Crunch Fitness Video Made Her Viral Overnight

Social media celebrity, Kirsten Too Sweet, says her online presence skyrocketed after winning Crunch Fitness' viral #CrunchBooty Instagram contest, which earned her $1,000 and widespread recognition across the Internet.

Kirsten, known online as @kirstentoosweet, was announced as the winner of the nationwide Crunch Fitness contest in 2023 after submitting a single photo of herself stretching on a foam roller in the gym.

The post, tagged with “#crunchbooty,” quickly gained traction and caught the attention of Crunch’s corporate team, which promoted the image across multiple franchise pages.

“Once they posted it to all their social accounts for each location, I gained a following and heard from tons of brands,” Kirsten says. “That’s when I started taking my fitness journey seriously, and gaining the biggest booty.”

The photo’s viral success helped her grow a loyal audience, and allow the social media celebrity to inspire others on a fitness journey.

A follow-up post from Crunch Fitness's page formally recognized her as the winner and encouraged others to participate in future contests.

This year’s contest, branded #CrunchBooty2025, promises the same $1,000 prize and is open through August 31.

Crunch is encouraging members to post gym photos using the hashtag, though locker room content is not allowed

Kirsten, who has amassed millions of followers across social media, says the win helped amplify her platform, where she promotes healthy weight gain and body positivity.

“Fitness has completely changed my life - not just physically, but mentally too,” Kirsten said. “I want to show people, especially women, that it’s okay to take up space, to gain weight in a healthy way, and to feel strong in your body. If I can inspire even one person to feel confident in their own skin, then I’ve done something right.”

Kirsten’s story underscores how fitness influencers can use niche contests to break into the digital spotlight.

“Keep those posts coming,” Crunch wrote in its winner announcement, “for a chance to shine on our socials.”