Arctic Monkeys debuted their new track, 'Evil Twin', in St. Louis, Missouri this week.

'Evil Twin' is the B-side to their forthcoming single, 'Suck It And See', which is due to be released on October 31. 

'Suck It And See' is the third single taken from their fourth album of the same name, which went straight to number one upon its release. 

Check out the first live performance of 'Evil Twin' and a live performance of 'Suck It And See' by Alex Turner: