Justin Bieber's Pals Lil' Wayne, Chris Brown Anger Selena Gomez

Justin Bieber’s girlfriend Selena Gomez is upset by the teen singer’s friendship with rappers including Lil’ Wayne and Chris Brown.

The 19-year-old Disney star apparently doesn’t approve because of the rappers’ checkered past.

Brown, who recently worked with Bieber, pleaded guilty to assaulting his ex-girlfriend Rihanna, while Lil’ Wayne recently completed a stint in prison for gun possession.

"Selena told him to stop hanging with these bad people,” a source told The Sun.

"She didn't want him to crash her gig. They had a huge row and said it was good they were having time apart while she was on tour."

As previously reported on Gigwise, Justin Bieber and Chris Brown have teamed-up on Chris Brown's new mixtape on a track called 'Ladies Love Me'.