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