Buzz Bites -- 1/13/2008: Jonas Brothers To Ba-Rock Obama's Inauguration & Perform At The Grammys!

+ Can we cram any more celeb musical acts into Obama's inauguration weekend? YES, WE CAN! Put your hands together for the latest additions to Barackstock '09: Miley Cyrus, Jay-Z and the Jonas Brothers! Plus, read up on other confirmed performers (like U2, Mary J. Blige and Beyonce). (MTV News)

+ And have we mentioned lately how sweet it is to be a Jonas? In addition to prettying up the Golden Globes (and landing that nifty inaugural concert gig), the boys have also snatched up a performance slot at this year's Grammys. (E! Online)

+ Jamie Lynn Spears' wedding plans are FINALLY coming together! The mom/bride-to-be plans to wear a Monique Lhuillier dress (presumably in off-white?), but haters be warned: the festivities sound more like a Vera Wang ad than a Jeff Foxworthy special. (Celebslam)

+ Katy Perry to Rest of World: Get a life. Please? (MTV News)

+ Finally! An opportunity to sail off into the sunset with New Kids on the Block! Yes, please! (Idolator)

+ Snap out of your late afternoon food coma by checking out Kelly Clarkson's new single: "My Life Would Suck Without You." (Rickey.org)

+ Lady Gaga reveals her post-Pussycat Dolls tour plans. (MTV News)

+ David Cook and Kimberly Caldwell are supposedly splitsville! Possibly because someone finally told Kim that her (ex!) boyfriend was not, in fact, Jimmy Fallon. (mjsbigblog)

+ Rap Wars! 50 Cent disses Kanye West's new album in an upcoming track called "Heartless Monster." (Remote Control)

Tags 50 Cent, Barack Obama, Beyonce, David Cook, Jamie Lynn Spears, Jay-Z, Jimmy Fallon, Kanye West, Katy Perry, Kelly Clarkson, Kimberly Caldwell, Lady Gaga, Mary J. Blige, Miley Cyrus, New Kids on the Block, Pussycat Dolls, U2