(As the writer himself admits, this has popped up about six weeks later than it should have done so if anyone’s got access to a time machine, please take it back to, say, the end of October and we’ll go for a do-over.)

Check out this wonderful musical turn featuring half of Hollywood, Prop 8: The Musical.

Faces to watch out for include Jack Black, John C Reilly, Alison Channey, Sarah Chalke, Lake Bell, Maya Rudolph, Rashida Jones and Neil Patrick Harris.

See more Jack Black videos at Funny or Die