Justin Bieber's acting ambition

Justin Bieber wants to be an actor.

The 'Baby' singer - who had a guest role on US crime show 'CSI: Crime Scene Investigation' earlier this year -has caught the acting bug and "definitely" wants another role in front of the camera.

He said: "I definitely want to do more acting, and further my career in that area, that's something I would love to do."

However, despite having a talent for following a script, the 17-year-old heartthrob insists his recent documentary film 'Justin Bieber: Never Say Never' - which chronicled his ascent to pop stardom - didn't involve any acting at all and says a scene where his grandmother tells him to tidy his room was genuine.

Speaking on 'The Kyle & Jackie O Show' on Sydney's 2Day FM: "It wasn't scripted... whenever I'm at my grandmother's she always tells me to clean up after myself, especially when I'm at home, but I'm not at home that often, I really don't have a room at this point, it's just kind of travelling all the time."

And although he wants to branch out in his career, Justin is still concentrating on his music and hopes to secure some new collaborations.

He said: "I would love to perform with Stevie Wonder or Beyonce."