U2, Kid Rock, Plant/Krauss Added To Grammys
They join previously announced performers Kenny Chesney, Coldplay, Jennifer Hudson, Jonas Brothers, Lil Wayne, Paul McCartney (with Dave Grohl on drums), Katy Perry, Radiohead, T.I. and Justin Timberlake, Carrie Underwood, and Jay-Z, Lil Wayne, T.I. and Kanye West.
The first batch of award presenters include Jack Black, Duffy, Josh Groban and Charlie Haden, along with actors Simon Baker, Samuel L. Jackson and Gwyneth Paltrow.