Listen to Lollapalooza Radio on iHeartRadio

iHeartRadio loves Betty Who!

Backstage at Lollapalooza, Kennedy chatted with the bodaciously tall and lovely Betty Who about the proposal video-gone-viral that features her song, "Somebody Loves You," and her experience getting to perform at the happy grooms' wedding.

Check out the super sweet proposal video below.

PHOTOS: Backstage at Lollapalooza 2014