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The cast of The Hangover shared their hangover cures at the premiere of The Hangover last night in Hollywood with USA Today.

Bradley Cooper: “You’re supposed to eat some roasted beets before you go out,” he said. “Sadly, I learned about this after the fact. Someone told me this after I had a really bad hangover.”

Ed Helms: “Here’s what you do: Get some feta cheese. Do a shot of red paint and chase that with a gallon of gasoline. It’ll clear it right up. I’ve done this every time,” he said with a laugh. “I’m sort of my own daredevil. I’m all about the trial and error.”

Justin Bartha: “Oh, keep drinking. Don’t stop. A beer. One Bloody Mary. Keep it going. But if you have a little stomach thing, skip the Bloody Mary. I got that advice from myself. That comes from experience,” he said. “Really, I’m a fairly tame guy, but I’ve had a couple bad ones. I’m usually the one laying in bed groaning the next morning.”

Heather Graham: Her theory is to avoid drinking altogether in order to avoid any next-day pains (“I’ve had some terrible hangovers and I’m like, why did I drink that much?”).

Come on Heather you could have done a little better than that. We could have used a little more sharing from you. Like when Bradley talked about having some balls hanging in front of his face. We like it when celebrities share.

Gallery Info: Bradley Cooper, Zac Efron, Mary Kate Olsen, Ashley Olsen, Heather Graham, Jim Carrey, Jenny McCarthy, Kendra Wilkinson, Dax Sherpard, Jamie Lynn Sigler, Rachel Harris, Eva Mendes, Kate Flannery, Ed Helms, Oscar Nunez, Audrina Patridge, Justin Bartha, Jason Bateman, Ken Jeong, Jerry Ferrara, Cheryl Hines, Kristen Bell, Sasha Barrese, Angela Kinsey, Joe Francis, Brett Ratner, Kate Walsh, Danny Masterson and Jeremy Piven at the Hollywood premiere of The Hangover.