- David Letterman (Self - Host)
- Paul Shaffer (Self -Musical Director)
- Alan Kalter (Self - Announcer (voice))
Late Show with David Letterman — S15E21
Episode: Jennifer Lopez, Alan Greenspan
Air Date: 2007-10-09
Overview
Several elderly Alan Greenspan "groupies" stand outside the theater as the former Chairman of the Federal Reserve plugs his new book. Also, Jennifer Lopez discusses pregnancy rumors and sings "Do It Well."