I really want to know which song Kido and Zach used to win world. Can you guys help me? Thanks!
Actually it was their yoyo skills that caused them to win, not the music. 
Their use of the music could’ve meant the difference from 1st and 2nd place though :
So could a bolt of lightning that never happened! :
Well thanks to the OP for getting me to watch those again! I really liked Zach’s in particular. IDK either of the songs. Zach’s has to be a compilation, right? If not, that song is all over the place! I don’t want to know what tune Kido used, and hope to never hear that again.