BEVERLY HILLS, CA --
Cee Lo Green isn't just a top nominee for Sunday's Grammy Awards, he's also a last-minute hero for Rihanna and the Women's Cancer Research Fund. The artist behind the hit song "(Expletive) You" filled in for Rihanna after she had to cancel her scheduled performance Thursday at the organization's annual fundraising dinner because of the flu. Both singers are expected to perform during the Grammy ceremony.
Green warmed up his voice and his four-piece, all-female band at "An Unforgettable Evening," the star-studded fundraiser held at the Regent Beverly Wilshire hotel, where he performed four songs.
Conan O'Brien served as host and Annette Bening and Martin Short were honored at the annual event, which has raised $25 million for research and education about women's cancers.