Like Snooki, Miley Cyrus wasn’t going to wait until Tuesday to celebrate her birthday. Instead, the nearly-18-year-old indulge in a private party after last night’s American Music Awards, trading the long-tailed glam of her red carpet appearance for a tasteful black bikini-top and matching skin-tight pants (adulthood, y’all!). While the gruesome details are certain to come, Miley warned Access Hollywood in advance that she and mommy Tish would be facing each other in a dance-off. “Me and my mom actually have choreography for the night later — everyone loves when we dance in unison. There’s one [move] where you do like, the fist pump. You Jersey Shore it for a second!”
Sunday wasn’t entirely full of questionable choices, though. According to TMZ, Miley decided at the last minute not to cover Poison‘s “Every Rose Has Its Thorn” for the AMAs broadcast, plausibly because Bret Michaels was rumored to be dallying with Tish before she announced plans to divorce from Billy Ray Cyrus. Though everyone’s denied the claims, odds are Daddy wouldn’t have given that song choice his trademark standing “O”. See photos from Sunday in the gallery below.
Update: TMZ has a photo of Miley getting a birthday kiss—and straddle—from a guy at the party who looks a lot like rumored boyfriend/actor Avan Jogia. Careful, dude: she’s not really 18 until tomorrow!