The MTV VMAs kicked off with a bang as Lady Gaga took the stage for an intense performance of her new single, "Applause," which was made complete by her stripping down to a thong. Justin Timberlake proved that he is more than deserving of the Video Vanguard Award, taking the stage to perform some of the biggest hits from his long career, as well as joining his former band, *NSYNC, for an updated rendition of their hit "Bye, Bye, Bye." Miley Cyrus made an equally provocative appearance on stage to perform her hit "We Can't Stop" alongside Robin Thicke. BFFs Taylor Swift and Selena Gomez were buddied up in the audience, and Selena picked up the award for best pop video. Take a look at the best moments inside the VMAs!