Where you've seen him: As a sexy wannabe singer on the short-lived WB series My Guide to Becoming a Rock Star and a rich student in the college thriller New Best Friend.
Why we picked him: We first saw the tall, dark, and mysterious 25-year-old escorting his sister Kate Hudson to red-carpet events. Only later did we find out he was actually talented.
He's not a rock star, he just played one on TV. "When I was 10, my best friend and I said we were going to have a band and only sing one song, which was 'We Build This City' by Jefferson Starship. So far we haven't recorded it, but the dream is not over."