Guest Stars John Legend as Himself Lady Gaga as Herself Ben Platt as Himself Sam Smith as Themselves Bruno Mars as Himself Cardi B as Herself Anna Kendrick as Herself Miley Cyrus as Herself Nick Jonas as Himself U2 as Themselves Kendrick Lamar as Himself Little Big Town as Themselves Shemar Moore as Himself Sarah Silverman as Herself Donnie Wahlberg as Himself Donald Glover as Childish Gambino Hailee Steinfeld as Herself Alicia Keys as Herself Patti LuPone as Herself Dave Chappelle as Himself Jim Gaffigan as Himself Katie Holmes as Herself Trevor Noah as Himself Kelly Clarkson as Herself Pink as Herself Tony Bennett as Himself Elton John as Himself Kesha as Herself Victor Cruz as Himself Alessia Cara as Herself Khalid as Himself Logic as Himself Luis Fonsi as Himself Daddy Yankee as Himself