LOS ANGELES, California (X17online) - Chris Brown and Rihanna have apparently patched up their relationship enough to record a track for Brown's upcoming album, E! News reports.

"They've been working on it together," an insider tells E!.

The pair have reportedly been spending long hours at a Santa Monica recording studio working on the track with producer Polow Da Don.

He's the guy behind hits for Will Smith, Fergie, Ciara, Usher, Ludacris and wrote the Pussycat Dolls' hit "Buttons.

Neither Brown's, nor Rihanna's spokesperson would comment on the reported collaboration.