Rihanna

Rihanna, Paul McCartney and Kanye West are to perform their new single "FourFiveSeconds" at Sunday's Grammy Awards ceremony, CBS announced Tuesday.
This will be the first time the trio sings the song live in public.
LL Cool J is to host the ceremony, which honors excellence in all genres of music. The event is to take place at the STAPLES Center in Los Angeles and will air on CBS.