http://splitsider.com/2014/06/leno-bashing-partial-nudity-and-an-uncomfortable-host-howard-sterns-11-most-memorable-appearances-on-letterman/?

The shock jock first sat on David Letterman's couch in 1984.
Read more at http://www.hitfix.com/tv-tattle/5#yiJ8MOlrgmmXkCrV.99