Robert Plant and Alison Krauss have been added to the list of performers at the 51st annual Grammy Awards show, organizers announced Thursday (Jan. 29). Other new additions to the list include Kid Rock, U2 and Rihanna. Plant and Krauss are nominated in five categories, including album of the year and best contemporary folk/Americana album for Raising Sand. They are also nominated for record of the year (for "Please Read the Letter"), best pop collaboration with vocals ("Rich Woman") and best country collaboration with vocals ("Killing the Blues"). Previously-announced performers include Kenny Chesney, Carrie Underwood, Coldplay, the Jonas Brothers and Lil Wayne. Paul McCartney will perform with a band featuring Foo Fighters front man Dave Grohl on drums. Jack Black, Duffy, Josh Groban, Charlie Haden, Samuel L. Jackson and Gwyneth Paltrow will be among the presenters. The Grammy Awards show takes place Feb. 8 in Los Angeles and will be broadcast live on CBS.