Guests of the Week: March 16-29, 2009

It's a good week if you want to see talk show hosts interviewing other talk show hosts. David Letterman has guest Craig Ferguson on Wednesday; Jay Leno welcomes Keith Olbermann, also on Wednesday; Ferguson sits down with Regis Philbin tonight, while Reege will visit the ladies of "The View" on Friday. Then, to make things even more confusing, Ferguson will be a guest on "Live with Regis and Kelly" on Thursday. Oh, and Carson Daly will appear on "The Morning Show with Mike and Juliet" on Tuesday. Whew.

Spinal Tap fans should tune into Tavis Smiley's show on Friday, as he'll feature Christopher Guest, Harry Shearer and Michael McKean,who are about to hit the road for an acoustic tour. And as previously mentioned, Bruce Springsteen will make his first visit to "The Daily Show" as a guest on Thursday. (Jon Stewart has said Bruce has already attended the program as an audience member.)

Tomorrow is St. Patrick's Day, and if you want to hear some Irish sounds, Dropkick Murphys will stop by Craig Ferguson's "Late Late Show," while Young Dubliners are the musical guests on "Jimmy Kimmel Live."