Watch Arctic Monkeys cover The Strokes' 'Is This It'.

"I just wanted to be one of The Strokes, now look at the mess you made me make," Alex Turner sings on the opening line of the Arctic Monkeys' new album 'Tranquility Base Hotel + Casino', and to much universal delight, the band covered The Strokes' song 'Is This It' during their Forest Hills show tonight - after fans heard the band rehearsing the song during soundcheck.