Chris Brown and Drake appear to have buried the hatchet after their bottle-throwing brawl in a New York nightspot in June 2012 over mutual love interest Rihanna, and proved their newfound friendship by heading into the studio to work on a potential new track.

Earlier today, Chris wrote on his Facebook page: "Hangin with Drake in the studio".

Although the post has since been deleted, it seems likely Drake could be a guest star on the 'Don't Wake Me Up' singer's new album, 'X', due in November.

The mysterious message was also accompanied a still image from an old video of the 24-year-old R&B star with his old pal Drake before their massive falling out.

An insider told Us Weekly: "They made peace and are cool now. Rihanna is in the past and all the drama. They decided to start fresh and be cool with each other and they are now."

This news comes after reports the pair patched things up last month at the iHeartRadio Festival in Las Vegas, where Drake made a beeline for Chris' dressing room before his performance to hug things out.

A source said at the time: "Drake came on Friday with his whole crew, and watched Chris' entire set. They were backstage hugging and drinking."