For Dave and for Bob, it's "The Late Show," and the hour is getting late.

A sincere delivery of "The Night We Called It a Day," and a nice intro by Dave.

I doubt if much of the audience understood what Bob Dylan was trying to do here. Letterman's intro included the statement that Bob is the greatest songwriter, but the song performed was written by someone else � from Bob's new album of cover songs, Frank-Sinatra-related cover songs. Bob looked a tad tormented, and I wondered if he might be thinking that people wouldn't understand why he was doing this and I retreated to the position that the mind of Bob Dylan is simply an unknowable phantasmagoria. When Dave came over to thank Bob, after the song was over, Bob accepted the handshake and then wandered off as if... well, I really don't know. Like there was too much confusion and he was looking for some way out of here.

For Dave and for Bob, it's "The Late Show," and the hour is getting late.