American Idol bikini-off moment

The American Idol finale results show was packed with performances by the Top 13 finalists, including the usual duets, like Allison Iraheta with Cyndi Lauper and Danny Gokey with Lionel Richie. But the most eyebrow-raising pairing was when "Bikini Girl" (aka Katrina Darrell) made an encore -- with nemesis Kara DioGuardi. At the end, the judge unbuttoned her dress and flashed her own bikini.