'Prop 8: The Musical'

In FunnyOrDie's newest exclusive video, "Prop 8 -- The Musical," Hollywood stars hone their craft in a community theatre-style clip in support of gay rights. The sketch was conceived and written by Marc Shaiman (Hairspray), and directed and staged by Hairspray movie musical director Adam Shankman.

There are almost too many celebrity appearances in the star-studded cast to count, but we'll try anyway: Jack Black, John C. Reilly, Andy Richter, Maya Rudolph, Allison Janney, Margaret Cho, Craig Robinson, Neil Patrick Harris, and many more show up to support the cause.

Watch "Prop 8 -- The Musical" below:

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-- Daniel Lehman