Jimmy Kimmel, PJ Harvey A remarkably slim and trim Biff introduces footage of him hanging out at the Grand Prix in Detroit. Also, Dave and Paul (of all people) talk about hair care, which proceeds into a new segment called "Hairpiece- Not a Hairpiece." Details Casts Title Jimmy Kimmel, PJ Harvey Genres Talk Comedy Release Date 2001-06-20 Episode Runtime 01 Hours 03 Minutes Season Number 8 Episode Number 170 Production Companies Worldwide Pants, CBS Entertainment Productions, CBS Productions, CBS Studios David Letterman Self - Host Paul Shaffer Self -Musical Director Alan Kalter Self - Announcer (voice)