U2 on Letterman All Week, Playing Secret Gig for GMA

In an unprecedented move, U2 is going to be performing on “The Late Show with David Letterman” every night this week. The band is in NYC promoting their new album, “No Line on the Horizon”, which drops tomorrow. The “Late Show” is taped at the Ed Sullivan Theater Mondays at 4:30 PM and 7:00 PM, Tuesdays and Wednesdays at 5:30 PM, and Thursdays at 4:30 PM. The second Monday show is played on Friday, so yes, that means Dave gets every …