This is Lizzy Rae performing For Today Makes A Birthday Cake, a metal song that doubles as a birthday cake recipe (previously: her shepherd's pie recipe song which I made and was pretty decent). I was so inspired I tried to write a country song about my mom's meatloaf recipe but I couldn't figure out how to work my girlfriend leaving me for a guy with a cooler truck and drinking Budweisers with my buddies down by the river into it.
Keep going for the video. And yes, that's really her singing, although she records in a sound booth for the actual audio.
Thanks to Nicholas, who agrees sprinkles really do make the cake.