Audrina Cathleen Patridge (born May 9, 1985) is an American reality television participant, best known as one of the cast members, along with Lauren Conrad, Heidi Montag and Whitney Port, on the MTV reality show The Hills. The Hills star Audrina Patridge has a fun day in the the sun at the DKNY Jeans Malibu Beach house. She looks great in this Birdie Jo bikini.