"Punk'd" is back, and its causing some series drama for its Hollywood targets. In this sneak-peek of the wedding-crashing premiere, Justin Bieber -- who is celebrating his 18th birthday -- punks his good friend, pop superstar Taylor Swift, and from the look on her shocked face, you'd think she won an award.

This season, Ashton Kutcher is passing the torch to a different celebrity host each week, including Justin Bieber, Miley Cyrus, Kellan Lutz, Hayden Panettiere, Bam Margera and “Punk’d” alum Dax Shepard, among many others, who will punk their unsuspecting famous friends, including Khloe Kardashian Odom, “Teen Wolf’s” Tyler Posey, Demi Lovato, and more.