All five Album of the Year nominees -- Arcade Fire, Eminem, Lady Antebellum, Lady Gaga and Katy Perry -- will also perform. The entertainment line-up will also include B.o.B, Cee Lo Green, Miranda Lambert, Bruno Mars, Janelle Monáe, and Muse.
In 2006, Usher played the role of Billy Flynn in the Broadway revival of Chicago. He has won numerous Grammy Awards, American Music Awards, MTV Video Music Awards, and other music industry honors.
For TheaterMania's previous story on Grammy nominees, click here.