"Knock U Out" is the second single from Joel Turner and the Modern Day Poets' self-titled album Joel Turner and the Modern Day Poets. It features a guest appearance by boxer Anthony Mundine.The song incorporates elements from the 1982 Survivor hit "Eye of the Tiger" in keeping with a boxing theme. The chorus and first verse are performed by DubLT, the second verse by Mundine, and the third by C4.