It's not a regular thing to see late night hosts appear on other late night shows. But I think it was great that The Late Show with David Letterman's Paul Shaffer was given the okay to appear on Jimmy Kimmel Live to not only plug his new book but also play with the band. I can't imagine Kevin Eubanks coming over to The Late Show and doing the same.

He also talked about his love for Las Vegas and Jerry Lewis. They don't do the split screen right though. Shouldn't they be looking straight ahead instead of at each other?

[Watch clips and episodes of Jimmy Kimmel Live and other shows at SlashControl.]