Adam Levine quit going to the gym and focused solely on practising yoga five years ago after his regular weight sessions turned him into a "monster".
The Maroon 5 frontman is known for his six-pack and toned arms - and he insists it's all down to the relaxing exercise.
He tells Details magazine, "Weights made my neck thick, and I would be like, 'I'm turning into a monster!' Yoga takes what you have and moulds and sculpts it, which is a much more natural way to look and feel."
And Levine reveals yoga has become a vital part of his pre-concert ritual.
He adds, "Playing a show before thousands of people is a highly unnatural state. When I get on the mat and do an hour of yoga before the show, I come out physically relaxed."