On this episode of 'When I Was 17,' we take a look back on the teenage years of Ciara, CC Sabathia and Debi Nova. Recording artist Ciara spent her younger days singing, dancing and recording her first single. New York Yankees pitcher CC Sabathia spent his time in high school being the class clown -- until he was drafted to the Cleveland Indians. Singer Debi Nova left Costa Rica to follow her dreams in America.