Grace VanderWaal & Jason Mraz perform at Special Olympics

Grace VanderWaal and Jason Mraz joined together to perform "I'm Yours" during the opening ceremony at the 2017 Special Olympics'.

During the performance, Mraz and VanderWaal's voices work in harmony to revamp the song, originally released in 2008, while maintaining its nostalgic vibe.

Needless to say the performance was beautiful. And both artists posting about their experience on Twitter.