Various / Live On Letterman - CDAuthor: Various Artists (Collections) Release Date: 11 01 2001 Details: Amazon. ca "Wanna buy a monkey?" It'd be more exciting than this safe collection of musical performances from the Late Show. Although some of the duet pairings are intriguing (including Lyle Lovett with Al Green and Elvis Costello with Burt Bacharach), most of the musicians sound like they're well aware they're playing in front of a national TV audience of millions. While