Arctic Monkeys Perform With Josh Homme Of Queens Of The Stone Age In LA [WATCH]

That the Arctic Monkeys and Josh Homme of Queens Of The Stone are biffles is no secret. They regularly appear on each other's albums and Homme has handled production duties for previous Monkeys' releases.

Still, fans at a recent LA show were right to be surprised when Homme appeared to give live backing vocals to his AM contribution "Knee Socks."

Check it out below: 

Expect the favor to be returned during a QOTSA show in the near future.