Lady Gaga's personal trainer has revealed that the star never complains during gruelling workouts.
Harley Pasternak told In Touch Weekly that the singer started a tough fitness regime last year because she wanted "the best abs, legs and arms ever".
He 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."
