Last year Lady Gaga decided to put herself under an intense regime because she "wanted the best abs, legs and arms ever", her personal trainer Harley Pasternak has revealed.
Speaking to In Touch Weekly, Pasternak said: "Like most stars she doesn't have a ton of time, so when she is with me she stays focused and never complains no matter how hard I push her.
"She has always been active, but about a year ago, she decided she wanted to have the best abs, legs and arms ever - so she stepped up her workouts.
"Now she is super confident about her body and comfortable wearing everything and anything."
The 'Paparazzi' singer has just completed her Monster Ball tour in Japan, and has hinted to fans that she could be performing on an upcoming episode of American Idol. She tweeted: "See you on American Idol. May 5th, Little Monsters."
Bet you can't wait to see what she's wearing then!?
Check out our snaps of Lady Gaga - we can't see why she wants to have the best bod - can't you!?