U2, KID ROCK, ROBERT PLANT & ALISON KRAUSS AND RIHANNA ADDED TO SUPERSTAR LINEUP FOR THE "51ST ANNUAL GRAMMY AWARDS," LIVE, SUNDAY, FEB. 8, ON THE CBS TELEVISION NETWORK

Simon Baker, Jack Black, Duffy, Josh Groban, Charlie Haden, Samuel L. Jackson and Gwyneth Paltrow Are First Announced Presenters for Music's Biggest Night�

U2, Kid Rock, Robert Plant & Alison Krauss and Rihanna are the latest performers announced for the 51st Annual GRAMMY Awards. They join previously announced performances by Kenny Chesney, Coldplay, Jennifer Hudson, Jonas Brothers, Lil Wayne, Paul McCartney (with special guest drummer Dave Grohl of Foo Fighters), Katy Perry, Radiohead, T.I. and Justin Timberlake (performing together), Carrie Underwood and a special collaboration with Jay-Z, Lil Wayne, T.I. and Kanye performing their hit single "Swagga Like Us" when the 51st ANNUAL GRAMMY AWARDS are broadcast live from The Staples Center in Los Angeles, Sunday, Feb. 8 (8:00-11:30 PM, ET/delayed PT) on the CBS Television Network.

Actor Simon Baker (CBS's "The Mentalist"), actor/musician Jack Black, current three-time GRAMMY nominee Duffy, current nominee Josh Groban, three-time GRAMMY-winning jazz musician and current nominee Charlie Haden, actor Samuel L. Jackson and Academy Award�-winning actress and current GRAMMY nominee Gwyneth Paltrow will appear as presenters.

Two-time GRAMMY winner Robert Plant and 21-time GRAMMY winner Alison Krauss have five nominations: Album Of The Year and Best Contemporary Folk/Americana Album for Raising Sand, Record Of The Year ("Please Read The Letter"), Best Pop Collaboration With Vocals ("Rich Woman") and Best Country Collaboration With Vocals ("Killing The Blues").

Duffy and GRAMMY winner Rihanna each have three nods. Duffy is up for Best New Artist, Best Female Pop Vocal Performance ("Mercy") and Best Pop Vocal Album (Rockferry). Rihanna is nominated for Best Pop Collaboration With Vocals ("If I Never See Your Face Again" with Maroon 5), Best Dance Recording ("Disturbia") and Best Long Form Music Video ("Good Girl Gone Bad Live").

Kid Rock is up for two awards: Best Male Pop Vocal Performance ("All Summer Long") and Best Rock Album (Rock N Roll Jesus).

Josh Groban, Charlie Haden and Gwyneth Paltrow each have one nomination. Groban has a nod for Best Traditional Pop Vocal Album (No�l), Haden is nominated for Best Country Instrumental Performance ("Is This America? (Katrina 2004) with Pat Metheny, Jerry Douglas and Bruce Hornsby) and Paltrow is nominated for Best Spoken Word Album For Children (Brown Bear And Friends).

As previously announced, Katy Perry will perform as part of the "MY GRAMMY MOMENT" segment on the telecast. This year, music fans can upload a 30- to 60-second video of themselves singing along to a portion of Perry's current GRAMMY-nominated song, "I Kissed A Girl," at www.CBS.com/grammys through Friday, Feb. 6. Submitted videos will be voted on by CBS.com users, and the most popular videos will be shown as part of Perry's 51st ANNUAL GRAMMY AWARDS performance on Music's Biggest Night�.

The music industry's premiere event will be broadcast in HDTV and 5.1 Surround Sound. The show is being supported with additional information on radio via Westwood One worldwide, and covered online at http://www.cbs.com/ and http://www.grammy.com/. It is also being supported with additional content on Twitter at "theGRAMMYs," on Facebook at "The Recording Academy," on YouTube at "51stGRAMMYs," and on Last.fm at "the51stgrammys." Additional performers, presenters and special segments will be announced soon.

The 51st ANNUAL GRAMMY AWARDS are produced by John Cossette Productions in association with AEG Ehrlich Ventures for The Recording Academy. Ken Ehrlich and John Cossette are executive producers. Walter C. Miller is producer/director and Tisha Fein is the coordinating producer. David Wild and Ken Ehrlich are the writers. Musical directors for the telecast and pre-telecast are Rickey Minor and Larry Batiste, respectively.

Established in 1957, The Recording Academy is an organization of musicians, producers, engineers and recording professionals that is dedicated to improving the cultural condition and quality of life for music and its makers. Internationally known for the GRAMMY Awards - the preeminent peer-recognized award for musical excellence and the most credible brand in music - The Recording Academy is responsible for groundbreaking professional development, cultural enrichment, advocacy, education and human services programs. The Academy continues to focus on its mission of recognizing musical excellence, advocating for the well-being of music makers and ensuring music remains an indelible part of our culture. For more information about The Academy, please visit http://www.grammy.com/.