in. a beloved boy band got a good welcome back. >> might be a little excited about n sync. >> reporter: it was a night full of memorable moments for justin timberlake. the singer kicked off a near 20-minute medley after receiving the vanguard award. the show famous for surprises had a few more to offer. lady gaga returning to live performing after hip surgery in april opened the broadcast with four costume changes after performing. somehow it seemed tame compared to miley cyrus. a stripped down cyrus got r rated with a foam finger.