Katy Perry and Rihanna, who reportedly fell off after the Barbadian singer reunited with her former boyfriend Chris Brown, have become friends again.
The singers apparently became BFFs at a friend's birthday party in New York, the Mirror reported.
Perry and the 26-year-old singer were clicked sitting either side of the birthday boy, Major Lazer's Walshy Fire, and looked happy in each other's company again.
