Akaashi listens to cavetown non-stop. Bokuto still doesn't understand why he likes it but accepts it and listens to it with him all the time.
Bokuto will go home and just grind every cavetown song all night and tell Akaashi about the ones he really likes.
Bokuto's favourite is boys will be bugs, and always asks Akaashi to put it on during practice.
Akaashi didn't really expect Bokuto to like cavetown, but gets really happy when Bokuto finds a new song he likes, and will listen to him ramble on about it for hours.