Justin Bieber debuts new music video

At 18 years old, Justin Bieber has traded in his purple hoodie for a denim vest ... and possibly a broken nose.

All grown up, the singer shows off his mature new sound - and acting chops - in the music video for "As Long As You Love Me," which premiered on Wednesday.

Bieber takes a beating from Michael Madsen, who plays the protective father of Bieber's on-screen girlfriend (who isn't played by Selena Gomez), in the short film.

The track, off Bieber's second studio album, "Believe," features lyrics like, "As long as you love me, we could be starving, we could be homeless, we could be broke" - bold words for someone who was recently named the second highest-paid celebrity under 30.