Make-A-Wish Foundation

This 5-Year-Old Cancer Patient's Cover Of Katy Perry's 'Roar' Will Melt Your Heart

THIS. IS. AWESOME.

Katy Perry is about to make a lot of KatyCats' dreams come true with the launch of her Prismatic World Tour.

But first, the Make-A-Wish foundation helped 5-year-old stage IV cancer patient Addy's fantasy come to life by making her a pop star for a day in a video where she gets to sing Perry's "Roar."

Set hearts to melt.