Women who make us laugh
Tina Fey waves to fans as she arrives at the Kennedy Center where she was awarded the Mark Twain Prize for humor in Washington, Tuesday, Nov. 9, 2010.Cliff Owen/The Associated Press
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Actress and author Roseanne Barr poses for a portrait Tuesday, Jan. 4, 2011 in New York.Jeff Christensen/The Associated Press
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Amy Poehler stars in Parks & Recreation.Mitchell Haaseth
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Phyllis Diller, c. 1967.
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Joan Rivers on Just for Laughs.
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Sarah Silverman leaves a taping of the David Letterman show Oct. 13, 2008, in New York.BRIAN MCDERMOTT/The Associated Press
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