Rihanna, Mumford and Taylor Swift to perform at Grammys

Rihanna will perform at the upcoming 55th Grammy Music Awards, it has been confirmed.

Mumford And Sons, Taylor Swift and The Black Keys are also scheduled to sing at the ceremony, on Sunday 10 February.

Fun, who are up for album of the year alongside Mumford and The Black Keys, will make their Grammy debut.

Usually, all five nominees in that category are asked to perform - which would mean Jack White and Frank Ocean joining the bill at a lated date.

LL Cool J is returning as host of the event, which will take place at the Staples' Centre in Los Angeles.

At last year's ceremony Rihanna sang Princess of China with Coldplay.

Although she is the centrepiece of the Grammy's advertising campaign, she has relatively few nominations in the ceremony's 81 categories.

Her current album, Unapologetic, was released after the nomination deadline, but her single Where Have You Been is up best pop solo performance - alongside the likes of Call Me Maybe by Carly Rae Jepsen and Stronger (What Doesn't Kill You) by Kelly Clarkson.

Mumford And Sons dominate the 2013 nominations, with six nods for their second album Babel including best rock song and album of the year.

Jay-Z, Kanye West, Frank Ocean, Fun and The Black Keys are also up for six awards.