Sugarland's Jennifer Nettles has joined the list of performers for the Grammy Awards on Sunday (Jan. 31) while Sheryl Crow, Miranda Lambert and Keith Urban have been added as presenters. Previously announced country performers include nominees Lady Antebellum, Taylor Swift, Carrie Underwood and the Zac Brown Band. Previously announced presenters include Crazy Heart actor-singer Jeff Bridges, Miley Cyrus and Norah Jones, among many others. The ceremony will air live on CBS.