thefame Benny Blanco, Halsey, Ryan Tedder, Zara Larsson, Madison Beer, Ava Max, Chloe Bennet, Katy Perry, Julia Michaels, Charli XCX, Niall Horan, Danielle Campbell, Post Malone, James Corden, Lady Gaga, Ed Sheeran, David Dobrik, the guys from 5SOS & BTS