Justin Beiber kicked off his 18th birthday by pulling a prank on his good friend Taylor Swift.
MTV revived "Punk'd" which was popularized by Ashton Kutcher before with MTV and they let the Beibs started it off with the country singer.
Justin made Taylor shoot some fireworks at a beach house balcony which apparently made an offshore yacht catch some fire. To further up the ante, Justin leaked in to Taylor that the yacht is hosting a ...