Justin Bieber pranks Taylor Swift in first new episode of "Punk'd"

CEBU, Philippines - Stars beware - "Punk'd" is officially back in business and it's no longer only Ashton Kutcher to be afraid of!

The MTV celebrity prank series has resumed production, filming its first return episode on Friday in Los Angeles with Taylor Swift as the unsuspecting target.

However, it wasn't Ashton at the helm.

Instead, the prankster who "Punk'd" Taylor? Her good friend, Justin Bieber.

In the show's revamped format, series creator Ashton will no longer be the regular host of the show. Instead, a different celebrity will pull hosting duties each episode, as viewers get to watch them set up and execute their practical joke on their unknowing targets.

While he will no longer host, Ashton still serves as executive producer for the hidden camera series, which he first launched back in 2003. The show went on hiatus following its season finale in May 2007.

Rumors swirled back in October 2010 that MTV was reviving the show with Bieber as the host. While that's not necessarily the case, Bieber did prove to be involved in the first episode.

As previously reported, The Biebs joined good friend Taylor onstage on Tuesday night during the Los Angeles stop of her "Speak Now" tour.

The duo performed Bieber's hit "Baby."