July 31: Actress & singer Alexis Knapp, "Project X" & "Pitch Perfect," is 24-years-old today.

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Alexis Knapp was born July 31, 1989 in Avonmore, Pennsylvania. At age 18, Knapp moved to LA and there she worked as a model before breaking into acting.

At first, Alexis landed small roles in films such as Couples Retreat  and Percy Jackson & the Olympians: The Lightning Thief as Aphrodite Girl. In 2012, she starred in Project X as Alexis and Pitch Perfect (along with Anna Kendrick) as Stacie Conrad, the highly sex crazed Barden Bella.

Alexis has appeared on a few TV shows, and is set to star in ABC's Super Fun Night, written by and starring her Pitch Perfect co-star Rebel Wilson and alongside another one of her Pitch Perfect co-stars, Anna Camp.

Knapp also starred in the Tom Vaughan directed movie So Undercover, as Taylor Jaffe. Alexis also has roles in TBS Television Pilot, Ground Floor, portraying Tori, a party obsessed girl, who caught up on her sleep at work the next morning.

Alexis was also cast in the Lifetime pilot, Cinnamon Girl, before it got passed on. Alexis also stars in short film drama, Wracked, as Melissa.

Knapp dated actor Ryan Phillippe in the summer of 2010,before splitting in September 2010. After the break-up, Knapp discovered that she was pregnant, and gave birth to a daughter, Kailani Merizalde Phillippe Knapp, on July 1, 2011. She was pregnant with her daughter while filming So Undercover.

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