Sara Jean Underwood joins Karissa and Kristina Shannon (photo above) in the 2010 Playboy Calendar. Sara Jean Underwood is among Playboy’s Calendar girls announced for its 2010 issue launching in just a few weeks.

Playboy Hugh Hefner’s girlfriends Karissa and Kristina Shannon grace the edition along with some familiar faces, including LALATE’s fav Jessica Burciaga.

The calendar is set to have a selection of women from different backgrounds. They include Candice Cassidy, Ida LJungqvist, Sasckya Porto, Kayla Collins, Crystal McCahill, Dasha Astafyeva, Kelly Carrington, Hope Dworaczyk and Grace Kim.

On the big screen, Underwood this week wraps production on the film Zellwood opposite Patricia Rosales (Miss Cuba). LJungqvist was the 2009 Playmate of the Year, Underwood taking top honors in 2007.