Pearl Jam frontman Eddie Vedder tries on a Chicago Cubs jersey as the Cubs play host to the San Francisco Giants at Wrigley Field in Chicago, Illinois, on June 30, 2011. (Photo

Eddie Vedder singing 7th inning stretch at Cubs game Thursday

Chicago Cubs fan Eddie Vedder in Wrigleyville, signs fan's ball - Sports Illustrated

Pearl Jam frontman Eddie Vedder arriving at the Merrion Hotel carrying a vintage wooden suitcase Dublin, Ireland - 21.06.10 Stock Photo - Alamy

Eddie Vedder 7th Inning Stretch - World Series Game 5, “Let's take this show to Cleveland!” Vedder pulls off a legendary duet for Game 5., By Chicago Cubs

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Eddie Vedder sings 'Take Me Out to the Ballgame' at Cubs' World Series

Eddie Vedder sings 'Take Me Out to the Ballgame' at Cubs' World Series

Chicago Cubs - Wikipedia

Pearl Jam frontman Eddie Vedder, left, and Actor Johnny Depp, right, perform during the Voices For Justice Concert to benefit the West Memphis Three in Little Rock, Ark. Saturday Aug. 28, 2010. (

Pearl Jam frontman Eddie Vedder tries on a Chicago Cubs jersey as the Cubs play host to the San Francisco Giants at Wrigley Field in Chicago, Illinois, on June 30, 2011. (Photo

Chicago Cubs fan Eddie Vedder in Wrigleyville, signs fan's ball - Sports Illustrated

Eddie Vedder sings 'Take Me Out to the Ballgame' at Cubs' World Series