Guest Stars John Legend as Himself Ben Platt as Himself Billie Eilish as Herself Brandi Carlile as Herself Demi Lovato as Themselves Nick Jonas as Himself Ariana Grande as Herself Gwen Stefani as Herself BTS as Themselves Lizzo as Herself Lil Nas X as Himself H.E.R. as Herself DJ Khaled as Himself Diplo as Himself Billy Ray Cyrus as Himself Common as Himself Kevin Jonas as Himself Blake Shelton as Himself Cyndi Lauper as Herself Camila Cabello as Herself Tanya Tucker as Herself Misty Copeland as Herself Charlie Wilson as Himself Joe Jonas as Himself Meek Mill as Himself Rosalía as Herself Aerosmith as Themselves The War and Treaty as Themselves Mason Ramsey as Himself Roddy Ricch as Himself YG as Himself Tyler The Creator as Himself Run-D.M.C. as Themselves Lang Lang as Himself Kirk Franklin as Himself Joshua Bell as Himself Jonas Brothers as Themselves