*With Chris Brown and Rihanna reportedly on the same bill for Australia’s largest urban music festival Supafest, there is already online buzz that the two might take the stage together.

The festival – set for April 14 in Brisbane, April 15 in Sydney, April 21 in Melbourne and April 22 in Perth – also includes P.Diddy, Ice Cube, Lupe Fiasco, Missy Elliott, Ludacris, T-Pain and Trey Songz.

A source close to Rihanna and Brown tells NewsAU that a surprise performance with the pair is a “definite possibility,” though whether or not the two will perform together “won’t be decided until the last minute.”

According to reports, management for both Brown and Rihanna are eager to establish a professional partnership between the pair outside of the US.