Man loses 425 lbs and gets excess skin removed thanks to a Taylor Swift song

Loving him was red.

I don't wanna watch the video bc I am lazy but can someone tell me what song. That's all I wanna know.
Personally I hope it's Shake it Off and he was all "how am I gonna lose weight" then the song played and a lightbulb popped over his head. "I'll SHAKE it off!!"

"I just tell people I got bit by a shark."
Perfection.

That was the best story.