Wale's still out there promoting his 2009 debut, Attention Deficit, and what has become its biggest single, "Pretty Girls." Last night, he hit the Late Show with David Letterman and delivered a killer performance of the track. In particular, his backing band, fellow Washington D.C.'ers UCB, brought Best Kept Secret's beat to another level, which leads me to assume more than a few members of the crowd were dancing in their seats. But the best part of the performance, without question, is when Wale points to Paul Shaffer, walks over, and gives him daps.
