Singer Rihanna has announced the tracklisting for her new album Unapologetic, which includes a duet with Chris Brown. The 23-year-old has tweeted the list and it contains a song with Brown, who is still under supervised probation for assaulting her in 2009, reports thesun.co.uk.

However, Rihanna denied answering any question about the collaboration and her renewed relationship with the singer by calling it "nobody's business".

The listing also features rapper Eminem and a song written by chart-topping Scottish singer Emeli Sande.