Foo Fighters fans got a surprise at Japan’s Summersonic Festival over the weekend, when ’80s popstar and – later – internet sensation Rick Astley joined Dave and crew for a rip-roaring take on Never Gonna Give You Up.

Really. It happened. We’re not rickrolling you, promise! Still don’t believe us? Well, check this out…

(WARNING: Messrs Astley and Grohl do have potty mouths.)

Pre-order the new Foo Fighters album Concrete and Gold – out September 15 – at JB Hi-Fi now.