New York:

Sean Lennon’s national tour lands at Irving Plaza tonight. Miracle of miracles? Tickets aren’t even close to sold out. [Link]

Michael Showalter, A.K.A the guy who plays Berger’s friend in the post-post-it episode, is emcee tonight at the New York Magazine-Of Montreal karaoke party. Remember Billy? It sounds strangely C-list enough to work. [Link]

The Los Angeles and Chicago weekend events are after the jump.

Los Angeles:

Bill Condon, director of “Dreamgirls” and “Kinsey”, will be signing copies of “Dreamgirls: Portrait of the Film” at Book Soup on Sunday at 4:00PM. [Link]

Legendary director George Lucas will be grand marshal at the Long Beach Grand Prix on Sunday. Hugh Hefner will grand marshal Saturday – with the girls next door in tow? I feel like Kendra would definitely want to be there. [Link]

Chicago:

John Legend and Corrine Bailey Rae’s critically acclaimed tour has finally arrived in Chicago, incredibly talented and completely sold out. Sounds like Friday the 13th to me. [Link]

Arena rocker Peter Frampton takes his typical venue size down a notch with a show at the Rialto Square in Joliet on Friday night. [Link]

The Paul Green School of Rock is hosting a Northside Battle of the Bands on Saturday to benefit Rock for Kids. It’s basically “School of Rock”, minus Jack Black and Summer, but this is real life — infinitely more cool. [Link]