Lambert Talks about Sexuality

"American Idol" runner-up Adam Lambert proudly declared his sexual preference on the cover of Rolling Stone, and now the glam rocker is sitting down with "20/20's" Chris Connolly to talk about coming out to the world, his "odd fascination" with glitter and "bi-curiosity."

The 27-year-old dishes, "I love singing, and dancing and playing dress up and it's really not a big surprise."

Lambert tells Connolly, "I am gay. And I'm very comfortable with it and I have been for a very long time." Adam says he's been "out" ever since he moved to L.A. eight years ago but he adds that it "feels really good" to be out to the public.

Adam admits he's hooked up with the opposite sex in the past, saying, "I've been known to make out with girls from time to time. Couple drinks involved, you know, it's fun. And who knows, maybe it'll go further someday."