A 'hook' is a distinctive phrase in piece of music which is particularly memorable, and sticks in your mind.
'Wheel-tapping' is rather an odd phrase to use here. As a concept , it does exist : in the past, railwaymen would 'tap' the wheels of the train to make sure that there weren't any defects in them. It could be a reference to his (perhaps the metallic sound?). Or alternatively, it could be an error, and the writer intended to say 'heel-tapping', suggesting that the song's hook was so 'catchy'
that you couldn't help tapping your heels when you hear it.