LL Cool J has been confirmed as the host of the 57th annual Grammy Awards, which will be held in February.

The veteran rapper and actor will host the music awards show for the fourth consecutive year.

Madonna, John Legend, Miranda Lambert, Usher, Sam Smith, Pharrell Williams, AC/DC, Ariana Grande and Ed Sheeran will be among this year's performers.

The 2015 Grammys will be broadcast live in the USA from the Staples Centre in Los Angeles on Sunday February 8 on CBS.