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BREAKING NEWS: NFL.com has reported that Broncos receiver Wes Welker has been suspended for 4 games because of PED use. Read More

Live Performances

Singer Katy Perry performs onstage during the 53rd Annual GRAMMY Awards held at Staples Center on February 13, 2011 in Los Angeles, California.  (Photo by Kevin Winter/Getty Images)

Watch GRAMMY Artist Performances From Live On Letterman

Katy Perry, Adele, Coldplay, Wilco and other 2012 Grammy nominees perform Live on Letterman.

02/03/2012

(Photo credit ROBYN BECK/AFP/Getty Images)

Watch GRAMMY Artists Perform In-Studio At CBS Radio

Mumford & Sons, The Band Parry, Los Amigos Invisibles and other 2012 GRAMMY nominees perform in-studio at CBS Radio.

02/02/2012

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