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