Pull up your leg-warmers and break out the boombox - Melbourne's longest running and most-beloved weekly improv show is turning eight years old, and to celebrate they're heading back to the 1980s!

On the back of a smash hit Melbourne Town Hall season at this year's comedy festival, The Big HOO-HAA! takes to the Howler stage for a special, one-night-only improvised comedy extravaganza.

Stepping back in time to compete for your laughs are a who's who of Melbourne's funniest improvising punchline-slingers. Expect quick-fire improv games, hilarious songs created on the spot, and most importantly - big, BIG hair.

This show always sells out, so don't miss out on a birthday show that's bigger, bolder and better than anything you'll see this year. A Flock of Seagulls couldn't hold back this team of off-the-cuff comedy maestros!

"A non-stop laugh marathon...it's like a whole room of in-jokes all made together, and you're invited!" ****- Theatre People

"Comedy gold... the kind of show that you can see again and again." - The Plus Ones

"The wit and skills of these performers were staggering. On-the-spot puns and one-liners come on thick and fast." - Weekend Notes