The son of a TV host and an actor grew up in Santa Monica, Calif., and attended L.A.'s Loyola Marymount University before he became one of Hollywood's most successful VJs. Carson scored his major breakthrough in 1998 when MTV cast him as the host of music video countdown show "Total Request Live." During the height of his fame, the MTV host romanced Jennifer Love Hewitt and Tara Reid, to whom he was even engaged. In 2002, Carson left "TRL" -- but not Hollywood! -- behind.