Stars You Forgot Were on Sabrina the Teenage Witch

Watch your favorite stars on Sabrina the Teenage Witch, before they were on This Is Us, Big Bang Theory, and more hit shows. Full list: Milo Ventimiglia *NSYNC Kenan & Kel Andrew Keegan Bryan Cranston Simon Helberg Andy Roddick Jerry Springer Sisqo Brian Austin Green RuPaul Coolio Donald Faison Backstreet Boys Paula Abdul Kelly Clarkson Isaac Hanson Nicole Scherzinger Britney Spears TV Guide's official YouTube channel brings you behind-the-scenes access to your favorite shows and interviews with your favorite celebs! For more news, videos and photos click HERE: http://bit.ly/1qAossx Click HERE to SUBSCRIBE to the TV Guide channel: http://bit.ly/11yINCm TV Guide on Facebook: http://on.fb.me/1HqOzab TV Guide on Twitter: http://bit.ly/11GJx9o TV Guide on Google+: http://bit.ly/1BQPtN3