Justin Bieber -- Poppin' Bottles For 21st Birthday
Sources close to Justin tell us he rented a Caribbean isle near Grenada for the "I'm finally legal" bash ... and based on this video, he had a great time celebrating with friends.
Watch the video :
Bieber posted a pic on Shots of party ... and it looks like he's getting close again with model Yovanna Ventura -- who he was rumored to be hooking up with in the past.
Wonder if she came with a ribbon?
"It's easier to fool people than to convince them that they have been fooled. -- Mark Twain