Elizabeth Stamatina "Tina" Fey (pronounced /ˈfeɪ/; born May 18, 1970) is an American actress, comedian, writer and producer, known for her work on the NBC sketch comedy series Saturday Night Live (SNL), the NBC comedy series 30 Rock, and films such as Mean Girls (2004), Baby Mama (2008), and Date Night (2010). Fey first broke into comedy as a featured player in the the Chicago-based improvisational comedy group The Second City. She later joined SNL as a writer, later becoming head writer and a performer, known for her position as co-anchor in the Weekend Update segment. In 2004 she adapted the screenplay Mean Girls in which she also co-starred. After leaving SNL in 2006, she created the television series 30 Rock, a situation comedy loosely based on her experiences at SNL. In the series, Fey portrays the head writer of a fictional sketch comedy series. In 2008, she starred in the comedy film Baby Mama, alongside former SNL co-star Amy Poehler. Fey next appeared in the 2010 comedy films Date Night and Megamind. She has received seven Emmy Awards, three Golden Globe Awards, four Screen Actors Guild Awards, and four Writers Guild of America Awards. She was singled out as the performer who had the greatest impact on culture and entertainment in 2008 by the Associated Press, which gave her its AP Entertainer of the Year award for her satirical portrayal of Republican vice presidential candidate Sarah Palin in a guest appearance on SNL. In 2010, Fey was the recipient of the Mark Twain Prize for American Humor, and the youngest-ever winner of the award.