Sharon Osbourne, Kelly Osbourne, Jack Osbourne, Ozzy Osbourne, Post Malone, Slash, Duff McKagan, Chad Smith, Andrew Watt, Lana Del Rey, Jeremy Dufrene, Madison Beer, Demi Lovato, Dove Cameron, Damiano David, Sombr, Olivia Dean, Chrissy Teigen, John Legend, Laufey, Jennifer Hudson, Audrey Nuna, EJAE, Adam Lambert, MGK, Jelly Roll, Alex Warren, Kouvr Annon, Conan Gray, Tyla, Karol G, Suki Waterhouse seen in Los Angeles for Pre-Grammy Party