Fergie, the rocking popstar who's known as much for her smokin' body as her successful singing career, is pursuing a new career ambition: Acting. And you know what actors tend to do -- they slim down or bulk up for various roles. It's the latter for Fergie -- the gorgeous singer is in the process of gaining weight for the upcoming movie musical Nine.

According to Fergie, "I've actually gained 10 lbs! No, really - for the film, 'Nine'. Actually, 13 to be exact. I ate everything! Fish and chips. Everything fried - things I don't normally eat." But she's also looking forward to losing the weight in time for her wedding to Josh Duhamel, adding, "I have to give the bad food up now! So, yeah - I'm in that phase! Back to diet designs - my food delivery service!"

Gaining weight is always the easy part, huh? Good luck to her on the weight loss, though I don't think she needs it.

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There are some diet gimmicks that just don't seem worth it. Such as? Well, the Tapeworm diet comes to mind. And the baked bean diet. Not to mention using leeches to detox.

Here's another one: Superstar singer Fergie (real name: Stacy Ferguson) says she does shots of vinegar. Why would she do something so heinous? Apparently, it helps cleanse the colon, reduce bloating and cut cravings. Still, is it worth it? I'm still not sure about that.

Here's what Fergie herself has to say about it:
"I do vinegar shots. It has to be organic apple cider, unfiltered. Two tablespoons. For some reason I've noticed a difference on my stomach."

What do you think of this? Does it work, or is it just another one of those silly diet gimmicks?

(For more celebrity diet secrets, check out AOL Body)

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12 "healthy" foods that really aren't:

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