You know who's doing great these days? David Letterman's music talent booker. For those too groggy to stay up (ahem), J. Pierce brought the white-on-white and background singers and beautiful cacophony featured at recent live shows to CBS late night. As usual, waiting for the post-performance Letterman interaction is half the fun. This time: Letterman leaves Spaceman hanging. [videoembed size="full_width" ...