If you were lucky enough to miss out on the whole controversy over Katy Perry's new song being verrry similar to Sara Bareilles' new song, sorry to drag you into it now. However, your terrible new knowledge will not go unrewarded, as it's totally worth it to hear this kid's remix of the remix of the two songs. Self-harmonize on, you little crooner.
Fierce Pikachu pillow in the BG, too. Kid is boss.
[h/t Maria Pendolino]