Plastic surgery gone bad (PHOTOS, VIDEO): Lil' Kim breast implant work, collagen injections. Plastic surgery used to be one of Hollywood's biggest taboos, but now it is the worst-kept secret in town.

Stars have come forward to talk about their cosmetic procedures and how much they now regret going under the knife.

Lil' Kim

According to information Lil' Kim has undergone major plastic surgery. She has had breast implant work done, rhinoplasty, a tummy tuck, collagen injections and botox injections, cheek implants, a type of eye surgery and possibly a facelift.

Stars like Lisa Rinna, Dana Delany and Kim Kardashian have come forward to talk about their cosmetic procedures and how much they now regret going under the knife (See video below).

Denise Richards talks about her botched boob job. Nicole Kidman dislikes her botox treatments. Heidi Montag regrets her 10 procedures in one day. Kenny Rogers says he is the plastic surgery king. Jamie Lee Curtis called it an addiction she needed to beat.

Other stars have had similar experiences. Who are they? Read more here and see photos of 12 stars who have regrets. Foxypics has some great photos of all the stars here.