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