We first learned that Selena Gomez, 5 Seconds of Summer and Carrie Underwood would take the stage at one of music's biggest nights. It only got better from there: One Direction were added to the mix, and more recently Pentatonix, who promise to cover the Star Wars theme. Oh, and there's Coldplay, Macklemore & Ryan Lewis, Walk the Moon, Demi Lovato and Nick Jonas. Cool, right?
It get's better: Ariana Grande is getting in on the action, too!
The pop princess will tackle her most recent hit, "Focus," at the event. Here's hoping she goes on something of a feminist tangent, or at the very least, teases some new tunes (which will sound nothing like her single, apparently.)
When you're done buying that plane ticket to Los Angeles to try and get in on the action, click through every Ariana Grande collaboration, ever. We even ranked them!