Pop star Rihanna has kicked off her comeback by releasing a new single featuring Kanye West and Sir Paul McCartney.
The Umbrella hitmaker surprised fans on Saturday (24Jan15) by unveiling a new song called FourFiveSeconds, which features the Beatles legend on guitar and West rapping.
West previewed FourFiveSeconds at the IHeartRadio Summit music industry event in Los Angeles on Thursday (22Jan15) and it has now officially premiered.
It comes three weeks after McCartney and West released their surprise collaboration Only One.
Rihanna is believed to be set to release a new album in 2015, three years after her last record, 2012's Unapologetic.