Lupe Fiasco breezed through New York City today as he made his way to the Ed Sullivan Theater to tape “The Late Show with David Letterman.” Sporting classic frames, the Chi-town native rocked a necklace of bullets over a black-and-white tee, throwing the cameras a puzzled look as he entered the building for his performance. Tune in tonight at 11:35 p.m. EST to catch the rapper performing “The Show Goes On” during the broadcast.