Kristen Stewart, the “Twilight” star turns 21 on Saturday. This is sure to be another busy year for the actress. In addition to starring in “Twilight: Breaking Dawn,” Stewart is also set to appear in the highly anticipated adaptation of Jack Kerouac’s famous novel, “On the Road.”

Kristen Jaymes Stewart (born April 9, 1990) is an American actress. She is best known for playing Bella Swan in The Twilight Saga. She has also starred in films such as Panic Room (2002), Zathura (2005), In the Land of Women (2007), The Messengers (2007), Adventureland (2009) and The Runaways (2010).