Beverly D'Angelo (born November 15, 1951) is an American singer and actress, perhaps best known for her roles as Ellen Griswald in the National Lampoon's Vacation film series, Patsy Cline in Coal Miner's Daughter, and Doris Vinyard in American History X.D'Angelo was born in Columbus, Ohio, the daughter of Priscilla (nÃ©e Smith), a violinist, and Gene D'Angelo, a bass player and television station manager. She is of part Italian descent. Her maternal grandfather, Howard Dwight Smith, was the architect who designed iconic Ohio Stadium, also known as "the Horseshoe" at The Ohio State University.D'Angelo began work in the theatre, appearing on Broadway in 1976 in Rockabye Hamlet (also known as Kronborg: 1582) a musical based on Shakespeare's Hamlet. Although the production was a failure, running less than a month, D'Angelo's performance as Ophelia attracted positive attention.After gaining minor roles in movies including Annie Hall, D'Angelo had a string of hit movies in the late 1970s, appearing in Every Which Way But Loose, Hair, Her biggest break came with Chevy Chase in the 1983 National Lampoon's Vacation. Her role as Ellen Griswald was reprised in three Vacation sequels from 1985 through 1997. In 1992, she had a guest appearance in the third season of The Simpsons as Lurleen Lumpkin, a beautiful, Southern country singer and waitress, in Colonel Homer, and sixteen years later in 2008, she appeared in the nineteenth season - as the same character - in the episode Papa Don't Leech.She has a recurring role on Law & Order: SVU as defense attorney Rebecca Balthus.In 2006, she starred in the independent cult hit Gamers: The Movie. She can now be seen on the hit HBO series Entourage, playing the role of the alpha-female Barbara "Babs" Miller.In 2008, D'Angelo had a cameo in the film Harold and Kumar Escape from Guantanamo Bay as Sally.