Teen People

Pop Quiz: High School Musical Challenge!

You know the songs – but how well do you really know the stars? Test yourself!

  • Zac Efron costarred with which 90210 star on a short-lived TV show?

CREDIT: Gries / Getty; Fossum / Startraks; Williamson / FilmMagic; Vespa / WireImage

Published: Friday October 10, 2008 06:00 AM EDT

Zac Efron costarred with which 90210 star on a short-lived TV show?



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