Rita Ora has reportedly checked into what's been called the world's toughest fat camp.
The Hot Right Now singer has been staying at the pricey Viva Mayr clinic in Austria, because she wanted to detox and make sure she was in great shape for the summer, reported the Daily Mirror.
People staying at the clinic - by Lake Worth near the border with Italy and Slovenia - do plenty of exercise and consume healthy food, vitamins and minerals.
A source said: "It's the most opulent weight-loss and detox clinic in the world, and pretty hardcore.
"Rita wants to get in perfect shape for the summer and her forthcoming promo appearances. This was a last-ditch, and extreme, measure. Following a detailed examination and fitness test, she was given a rigid diet-and-exercise regime, with a few deep-tissue massages thrown in for good measure."
The 22-year-old recently tweeted a picture of the lake and wrote: "I know I shouldn't be instagraming I'm ment to be on a detox but... I'm in the middle of no where! #gettindark."