On this episode of 'When I Was 17,' we take a look back on the teenage years of Kourtney Kardashian, Travie McCoy and Kris Allen. Before she took Miami, a 17-year-old Kourtney Kardashian ended up on the wrong side of the law. Hip-hop star Travie McCoy had a broken heart and a talent for ping-pong. American Idol Kris Allen started getting into music and broke up with his future wife.