Amy Adams, from “Enchanted,” stops by the February 28 David Letterman in this video clip.

Brian Williams appeared on the February 28 Daily Show with Jon Stewart in this video clip.

Janet Jackson appeared on the February 28 Larry King Live in this video clip.
Another video clip with Janet Jackson and Larry King after the jump.

Natalie Portman continues promoting The Other Boleyn Girl — stopping by the February 28 Conan O’Brien in this video clip.
Part two of the Natalie Portman interview after the jump.

The February 28 American Idol results show tabulated the almost 31 million votes— and four of the top 20 finalists were elminated: Jason Yeager, Alexandrea Lushington, Alaina Whitaker and Robbie Carrico.

Along with the obvious trainwrecks (ahem, Britney Spears, Michael Jackson), there are plenty of TV celebs who made the cut of Pop Crunch’s 54 Worst Celebrity Trainwrecks, including:

Paris Hilton
Mischa Barton
Michelle Rodriguez
Kiefer Sutherland

JabbaWockeeZ, from “America’s Best Dance Crew,” perform on the February 28 Ellen DeGeneres Show in this video clip.

Barack Obama makes an appearance on the February 28 Ellen DeGeneres in this video clip.