Stephen August Colletti is an American actor and television personality. He was featured on the MTV reality show Laguna Beach: The Real Orange County. He also co-hosted MTV's Total Request Live. He currently plays Chase Adams in the CW television series One Tree Hill. Colletti was born in Newport Beach, California, the youngest child of Lorilee and Bruce Colletti. His father is of Italian and Swedish descent. Colletti has an older brother John, and an older sister Lauren. As a teen, Stephen attended Laguna Beach High School in Laguna Beach, California. Colletti was in his senior year of... high school when the first season of Laguna Beach: The Real Orange County began production after MTV asked him to join. At the time, he was involved in an on-and-off relationship with Kristin Cavallari. He was also involved with Lauren Conrad. The love triangle became one of the series' central plotlines. Upon graduating, he attended San Francisco State University for one year before moving back to Los Angeles to focus on his acting career. He also appeared in one episode of The Hills in 2007.
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