Thought this already existed, apparently not, tried it myself

Alphabet Boy by Melanie Martinez

Somebody Told Me by The Killers

AB (vocals):

https://youtu.be/kvWwK0Jw-s4

(Speed to 1.05)

STM (music):

https://youtu.be/C4S0DJjzh44

STM (vocals):

https://youtu.be/7HnAPNrQ-uo

(speed to 1.1x)

AB (music):

https://youtu.be/JGy14gkMEPw