Selena Gomez Reveals Her Bizarre Secret to Staying Healthy and Why She Envies Blake Lively

Selena Gomez is back and feeling better than ever.

In fact, in one of her first online interviews since returning from rehab, the singer chatted with Elle magazine and revealed what she's been doing to feel healthier, including one very bizarre treatment.

"I'm horrible at discipline when it comes to working out," she admitted, "So I've been working with my trainer Amy Rosoff Davis for a year now, and when we started the tour, I really wanted to keep it up. I wanted to be healthy; I wanted to feel good. I just wanted to make sure I was the best I could be for the show and for my fans."

Thus, Davis ended up hitting the road with Gomez during her most recent tour, making sure she keeps up her daily routine.

"We'll do hikes. We have a Pilates machine," the singer revealed. "I have a sweat bed, which looks like a burrito that I wrap myself up in, and I sweat for about 45 minutes. Just little things to kind of keep me healthy and keep me focused."

Yes, you read that right...a sweat bed!

"You lay in these beds in a sweatsuit, and they wrap you up and you sweat for 45 minutes and it releases all the toxins of your body," she explained. "I know it sounds gross, but you just sit in your sweat for an hour and don't immediately shower because there's natural collagen in your toxins that it actually makes your skin feel softer before you wash it all off. It feels incredible."

She added, "It's changed my skin, it's kind of changed my body as well, so it feels really good. That's kind of been something that works for me personally."

Another thing that helps her feel her best is staying away from makeup when she can. "I just can't understand when—and no offense—people have to wear makeup all the time."