Justin Bieber and Chris Brown have teamed-up on Chris Brown's new mixtape.
The track 'Ladies Love Me', which can be listened to on Gigwise below, sees Bieber take up rapping.
Wiz Khalifa, Big K.R.I.T., Tyga and Swizz Beatz are among the acts that appear on the 'New Boy In Detention mixtape.
Bieber and Chris Brown have previously worked together on single 'Next To You' and were recently rumoured to be back in the studio together.
Bieber told fans over Twitter: "did a lil something on the upcoming @chrisbrown mixtape.. Ladies love me. then we got crazy on the @asherroth album. #shawtymane".
Biber is currently in the studio working on a 'edgier' sound with Danja, Bangladesh, and Kevin Cossom for the follow-up to 2010's 'My World 2.0'.
Chris Brown, Justin Bieber - 'Ladies Love Me':
Justin Bieber - live photos