American Idol judge Kara DioGuardi strips down to her bikini while performing onstage during the American Idol Season 8 Grand Finale held at Nokia Theatre L.A. Live on Wednesday (May 20) in Los Angeles.
The 38-year-old sang a duet with Katrina Darrell, aka Bikini Girl. The twosome performed their own rendition of Mariah Carey's "Vision of Love." Watch the performance below!
FYI: As host Ryan Seacrest so poignantly pointed out, Katrina got breast implants since we last saw her during auditions


