WHAT: A rare look inside Taylor Swift's fitness routine.
WHO: Apple Music
WHY WE CARE: We already knew Swift was a rap fan, and no slouch when it came to rhyme karaoke and lip syncing, but here we get a real up-close and personal look at those skills. Obviously this is a win for a few reasons, not the least of which is taking a megastar like Swift and showing her in such a refreshingly real (and based on true events?) situation. It also reinforces a good general rule of thumb—beware the treadmill.