Rihanna has revealed what the follow-up single to the smash hit 'Diamonds' will be today, with her first single of 2013 set to be Unapologetic track 'Stay'.

The singer let it be known that the second single from her Number One album Unapologetic will be released 7 January, with the song getting it's first official broadcast on UK airwaves yesterday (Nov 30). Unapologetic, the Bajan beauty's seventh album, recently became her fourth UK No 1 album when it climbed to the top of the charts in November. Her latest single, 'Diamonds', from the album has already reached the top of the Official UK Singles Chart, with insiders expecting 'Stay' to achieve similar success.

Rihanna, who admittedly is never out of the public eye, recently made the news when she uploaded a picture of herself and former (well, it doesn't look 'former' any longer) boyfriend Chris Brown onto Instagram with the pair cuddling close together. This comes after months of speculation about whether the pair will be reuniting after being spotted together over recent months. Both stars have denied the accusations that they are rekindling their romance, which ended after Brown physically beat Rihanna leaving her with sizeable facial wounds, however it is looking more and more like the pair are looking to get back together.