She even gave them a big jumping hug!
...And five other things you should know today.
The two sang onstage together during Swift's final tour stop
We gathered all the featured artists onto one Spotify playlist
Ellie Goulding can do heartache like the best of them, but her musical range— from anthems like 'Burn' to her U.S. breakout, 'Lights'—owes itself to her idol and guide, Björk.