Caitlyn Jenner is a celebrity who gained national fame by winning American Idol.
Caitlyn Marie Jenner ( born October 28 , 1949 ) , formerly known as Bruce Jenner , is an American television personality and retired Olympic gold medal-winning decathlete . After intense training , Jenner won the 1976 Olympics decathlon event at the Montreal Olympic Games , gaining fame as `` an all-American hero '' .