Lady Gaga kicked off the show wearing an odd white getup -- including a square hood -- that covered up her body completely, but by the end of her performance, she had shed layers of costume to reveal a shell bikini top and a butt-baring thong.
Miley Cyrus, meanwhile, made quite an impression joining Robin Thicke onstage for a performance of his hit song "Blurred Lines." The singer stripped down to a shiny nude-colored bikini and bent over and twerked in front of Thicke, revealing a peek of underbutt.
Who's more trashy? lol