Christina Aguilera has given Justin Bieber some wise advice - don't let other people make you into "something you're not".

The Canadian superstar has endured some tough times recently, with Bieber - amongst other incidents - lashing out at a cameraman in London.

Speaking to Hollyscoop, Voice USA coach Aguilera said that the 'Believe' singer should concentrate on himself and keep his personality the same in light of all the negative attention. She said:

"I would tell Bieber, don't let anything morph you or push you around or have you be something you're not. I've always been really honest and true to my own roots and been really grounded, not letting myself stray too much."

Aguilera added that whilst being a young celebrity is hard, you get more chances to step out of the limelight as you get older. She said:

"You live life and it's hard to grow up in front of a camera. You learn as you get older to take moments for yourself, step away from the camera, re-inspire yourself as an artist, rejuvenate and refresh."