a goner
A Goner is when someone hits you with a song and you're so overwhelmed you're crying and begging for tacos.
My best friend is a goner. He played that song and I cried so hard I got a free taco.
My brother is a goner. He played the song and I started sobbing in the middle of the street.
My mom is a goner. She played the song and cried so much she knocked over the lamp.