This Week on the Daily Show

MONDAY 1/29 -- Bill Gates -- Chairman, Microsoft Corp.

TUESDAY 1/30 -- Neil DeGrasse Tyson -- host of TV's "NOVA scienceNOW" and author, "Death by Black Hole"

WEDNESDAY 1/31 -- Joe Biden -- Senator, D-DE

THURSDAY 2/1 -- Sienna Miller -- actor, "Factory Girl"