They've teamed up for a duet and taken the stage together in Australia.
But fans have not seen the last of the unexpected tandem of Justin Bieber and Chris Brown: the pair will star together in a music video for their track "Next 2 U."
"I can't tell you anything about that yet, but it's going to happen," director Colin Tilley told MTV of the shoot. "It's gonna be big. It's gonna be big. I can't say anything else."Tilley also directed Brown's on his eye-popping video for "Look at Me Now" and says the artist is "always down to make something different."
But we still find it very odd for Justin to team up with such a controversial star. What do you think of his duet with Brown?