The cast of Hairspray, including young stud Zac Efron, made an appearance on So You Think You Can Dance last night.

Here's the clip:

[youtube]http://www.youtube.com/watch?v=BwCnRSgGfYA&eurl=http%3A%2F%2Fjustjared%2Ebuzznet%2Ecom%2F[/youtube]

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.