Rihanna to perform with Mars and Sting

Rihanna will perform with Bruno Mars and Sting at the Grammy Awards.

Organisers confirmed the unlikely trio today, posting the news on the event's official Twitter page.

The artists will join Ed Sheeran, Alicia Keys and Frank Ocean, who will also sing at the ceremony on February 10.

"In case you missed, @BrunoMars @Rihanna + Sting (@OfficialSting) will be performing together at the 55th #GRAMMYs next Sunday," the tweet reads.

Rihanna is no newcomer to the Grammys, having taken to the stage last year to join Coldplay for Princess of China.

Despite playing a large part at the event, the Barbadian singer only has a modest amount of nominations.

Her latest album Unapologetic didn't make the nomination deadline, but her single Where Have You Been is listed alongside the likes of Carly Rae Jepsen's Call Me Maybe and Kelly Clarkson's Stronger (What Doesn't Kill You) in the best pop solo performance category.

The ceremony promises to be huge, with Maroon 5 also joining the line-up.

LL Cool J will return as host, while the likes of Keith Urban, Katy Perry and Faith Hill will act as presenters.

Also set to perform are fun., Justin Timberlake and Taylor Swift.

Mumford & Sons received a massive six nominations this year, with the British band also expected to join the ever-growing line-up of star performers.