When Grace sang the song at home on the porch on July 6. 2016 (performance# 27) she presented it like this: "This is Ex's and Oh's. This is one of my Favourites to sing, because it's different from what I normally do"
A few weeks later, Grace was praised for her cover by Elle King herself on twitter:
Elle King @ElleKingMusic · 26. jul. 2016
@GraceVanderWaal sweetheart you sing this better than me. You can join me on stage ANY time! You are a SUPERST⭐️R!!!
And Grace immediately tweeted back:
Grace VanderWaal@GraceVanderWaal - 26. jul. 2016
O. M. GGGGG!!!!😁 i love you so much @ElleKingMusic thank you!!!!!!🐼❤️😍#MiraclesCanHappen
This was the first song Grace sang at the open call audition for AGT.