Rihanna will perform with Paul McCartney and Kanye West on this year’s Grammy show, one of several intriguing collaborations.<252><137>FILE - In this Nov. 11, 2014, file photo, Rihanna performs on the National Mall in Washington during the Concert for Valor. Rihanna and Kanye West performed at DirecTV's Super Saturday Night party, in Glendale, Ariz., on Saturday, Jan. 31, 2015. (AP Photo/Carolyn Kaster, File)<252><137>
Rihanna will perform with Paul McCartney and Kanye West on this year’s Grammy show, one of several intriguing collaborations.<252><137>FILE - In this Nov. 11, 2014, file photo, Rihanna performs on the National Mall in Washington during the Concert for Valor. Rihanna and Kanye West performed at DirecTV's Super Saturday Night party, in Glendale, Ariz., on Saturday, Jan. 31, 2015. (AP Photo/Carolyn Kaster, File)<252><137> Carolyn Kaster The Associated Press
Rihanna will perform with Paul McCartney and Kanye West on this year’s Grammy show, one of several intriguing collaborations.<252><137>FILE - In this Nov. 11, 2014, file photo, Rihanna performs on the National Mall in Washington during the Concert for Valor. Rihanna and Kanye West performed at DirecTV's Super Saturday Night party, in Glendale, Ariz., on Saturday, Jan. 31, 2015. (AP Photo/Carolyn Kaster, File)<252><137> Carolyn Kaster The Associated Press