'American Idol' Top 7: Life in the 'Idol' bubble

"Basically my strategy is to kind of structure it almost like a set list in a show, to one week kind of do this five and then the next week kind of have something that contrasts with that so that I don't become a one-trick pony," says Adam Lambert. "Now I'm just a two-trick pony. Up and down, up and down. It's funny."