The world's most famous bottom?
Her face might not be familiar but with more than 1.7 million fans on Instagram, Jen Selter may have the world's most famous bum.
The 20-year-old New Yorker amassed the huge following since she began posting pictures of herself working out on the photo-sharing site in 2012.
She regularly notches up 80,000 likes per post with pics of her sculpting her body in yoga pants and sports bra.
And she even boasts global megastar Rihanna as a follower.
Miss Selter said: "I find it incredible how many followers I have gotten from my posts and it keeps getting bigger.
"I'm a huge Rihanna fan, and I take it as a huge honour that she follows me. Her music pumps me up in the gym - she's never messaged me but that would be awesome."
Her daily workout routine of around two hours includes cardio, squats and bodyweight exercises to sculpt her famous behind.
And she has become so popular she has been able to quit her job and make an income from her online popularity.
She also has deals with bottled water and supplement companies in the pipeline, and hopes to branch out into branding her own line of exercise clothes.
Miss Selter added: "It's a pretty wild adventure, and I am really enjoying it, but soon I would really like to spread my brand around the world as far as possible."