"Earth"
LIL DICKY released his video "Earth". It's got around 30 guest stars, but it's animated, and most of them play animals.
Here's who's in it, in order of appearance: Justin Bieber, Ariana Grande, Halsey, Zac Brown, Brendon Urie, Hailee Steinfeld, Wiz Khalifa, Snoop Dogg, Kevin Hart, Adam Levine, Shawn Mendes, Charlie Puth, Sia, Miley Cyrus, Lil Jon, Rita Ora, Miguel, Katy Perry, Lil Yachty, Ed Sheeran, and Leonardo DiCaprio. Plus Meghan Trainor, Joel Embiid, Tory Lanez, Backstreet Boys, John Legend, Psy, Bad Bunny, and Kris Wu sing a scene but they aren't drawn as characters.