Taylor Swift and Rihanna to perform at Grammys 2013

The first performers for the 55th Annual Grammy Awards have been announced. Current Grammy nominees Taylor Swift, Rihanna, Fun., The Black Keys, and Mumford & Sons are all slated to perform on the broadcast.

This will be the first Grammy performance for both Fun. and Mumford & Sons, who are each nominated for six awards. The Black Keys have five nominations this year, while Rihanna and Taylor each have three.

LL Cool J will once again host "music's biggest night" as the Grammy Awards air Sunday, February 10 on CBS.