Guest Stars Gwen Stefani as Herself Jennifer Hudson as Herself Maroon 5 as Themselves Pharrell Williams as Himself Chloe Kohanski as Herself Cassadee Pope as Herself Alicia Keys as Herself CeeLo Green as Himself John Legend as Himself Danielle Bradbery as Herself Ian Flanigan as Himself Bryce Leatherwood as Himself Miley Cyrus as Herself Reba McEntire as Herself Nick Jonas as Himself Dolly Parton as Herself Usher as Himself RaeLynn as Herself The Swon Brothers as Themselves Todd Tilghman as Himself Christina Aguilera as Herself Adam Levine as Himself Camila Cabello as Herself Lindsey Vonn as Herself Peyton Manning as Himself Dia Frampton as Herself Wayne Gretzky as Himself The U.S. Army Field Band as Themselves Cam Anthony as Himself Bodie as Himself Craig Wayne Boyd as Himself Sundance Head as Himself Wendy Moten as Herself Jermaine Paul as Himself Toosii as Himself Lily Rose as Herself Xenia as Herself Jackie Joyner-Kersee as Herself Al Michaels as Himself Diplo as Himself George Strait as Himself Jimmie Johnson as Himself