It sounds shocking, we know, but sometimes the key you play a song in is, well, key.
Taylor Swift's new music video "Shake It Off" is a peppy, upbeat response to all the criticism that's been lobbed at her over the years -- at least when it's sung in major.
When The Gregory Brothers bring Swift's song down to minor, the response to the catalog of haters and other ne'er-do-wells starts to sound, well, a little depressing.
To top things off, poor Sarah Fullen Gregory has to crawl beneath the guys while they, uh, attempt to twerk.
As the Brothers note helpfully in the video description, "It's very difficult to shake things, when you are very very sad."