Keith Olbermann's First Guests: Michael Moore, Markos Moulitsas

Both will also contribute to the show

Keith Olbermann's first guests will be good Friends of Keith: He's enlisted Michael Moore and Daily Kos founder Markos Moulitsas, both of whom are also contributors to the show.

Olbermann's new "Countdown" debuts tonight on Current TV. He did not say who else might turn up. But would he really pass on the chance to interview Current co-founder Al Gore?

Olbermann announced his first guests on Twitter, where he also pointed fans toward Current.Com/Countdown to help them Current TV wherever they live.