Bono and his bandmates will be on Letterman every night from March 2nd - March 6th to promote their new album, No Line On The Horizon, which drops March 3rd. Wow - don't know that we've seen something like this since John and Yoko on Mike Douglas in '72.

It probably has a lot to do with the Conan O'Brien move to Late Night, and a perception that there's an opportunity right now to pick off viewers, but it sure seems like Letterman's doing a lot of stuff no one else is doing. Let's give a brief rundown from just the last month, shall we?

1. Airing Bill Hicks' 15 Year-Old Censored Performance -  Ballsy, moving, awesome. 

2. Ripping apart Rod Blagojevich.

3. Joaquin Phoenix. Don't know if that was a hoax or not - or, honestly, what the hell that was. But it sure does seem this kind of thing happens to Dave a lot more than it happens to anyone else.

4. This U2 announcement. 

Letterman's on a serious roll right now. It'll be interesting to see if this results in him getting the late-night crown that was supposed to be his for good back in 1993. 

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