Tina Fey working that mouth.

Members of the Writers Guild of America on strike in NY and LA, among them, Tina Fey picketing NBC headquarters in New York.

Film and TV writers resolved to put down their pens and take up picket signs after last-ditch talks failed to avert a strike. The writers are fighting for residuals, DVD profits and revenue from the distribution of films and TV shows over the Internet . The strike is the first walkout by the writers in 20 years, which lasted 22 weeks and cost the industry more than $500 million.

The shows that will be affected by Monday due to the strikes are "Late Night with Conan O'Brien", "Tonight Show with Jay Leno" and "The Late Show with David Letterman" and will be playing re-runs.

[AP Photo/Gary He]