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