I'm going to go out on a limb here and say the one thing that really brought Chris Martin and Gwyneth Paltrow together all those years ago was a shared love of crazy dieting techniques — and sharing them with the world whether anyone wants to know or not. Not letting his Goop-happy ex-wife have all the fun, the Coldplay front-man is now boasting about a diet plan he's been following for years that involves just straight skipping food completely for one day a week. No, seriously. 

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I fast once a week. I started doing it because I was sick one time, and this guy said to me, 'Just try not eating for a day because it will make your body feel healthier,'" he says in an interview with Fresh 102.7. "I did it and then I found I could sing a bit better, and also I felt so grateful for food ... and just grateful for everything in a way that I wasn't so much before." Well, sure. Deprivation will do that. "I think that that feeling of gratitude and stuff naturally brings out a joyous feeling, and also when you're hungry you are very focused, so both sides of it I think help creativity," he muses. Or, you know, you're just delirious. 

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The diet isn't without its drawbacks, of course: