Keeping with their hometown tradition, Wilco lead the Cubs fans at Chicago's Wrigley Field in the singing of "Take Me Out to the Ballgame." We use the term "singing" loosely though, as frontman Jeff Tweedy and the rest of the band pretty much just hold out their microphones to the stands and let the crowd do all the work. Maybe Wilco was tired from their Lollapalooza set the night before. Tweedy, in a "slimming" Cubs jersey with #3 on the back, does stick around for a half-inning interview in which he possibly destroys all his Chicago cred by admitting he's (gasp!) a St. Louis Cardinals fan. Check out the video above.