Christina Milian performed a sexy song with her boo Lil Wayne at the Billboard Hot 100 Music Festival in Jones Beach, NY. She took to the stage first in some booty shorts and bikini top and then Weezy popped up to debut the singer’s new single. Christina did give a hint on IG about her special guest performer, “Drink it up to the last drop.. yup.. the thirst is REAL when it comes to my Baby… #hot100fest @samsungmobileusa @billboard about to hit the Beach Stage and kill it… come thru! Got a special surprise… #doit #likeme #newmusic.” Watch the full clip below!