Rascal Flatts, Taylor Swift and Carrie Underwood will appear on Katie Couric's All Access Grammy Special on Feb. 4 on CBS. Other performers on the special include Adele, Duffy, the Jonas Brothers, Kid Rock, John Legend, Lil Wayne, Metallica, Ne-Yo, Katy Perry, Jordin Sparks, Jazmine Sullivan, T-Pain and Justin Timberlake. The Grammys will air live from Los Angeles on CBS on Feb. 8. Previously announced performers on the awards show include Kenny Chesney and Underwood.