Guest Stars Taylor Swift as Herself Justin Timberlake as Himself Ryan Seacrest as Himself Chris Brown as Himself Meghan Trainor as Herself Florida Georgia Line as Themselves Jason Derulo as Himself Gina Rodriguez as Herself Zendaya as Herself (Zendaya Coleman) Steven Yeun as Himself Kelly Clarkson as Herself Reba McEntire as Herself Madonna as Herself Nick Jonas as Himself Taraji P. Henson as Herself (Taraji Henson) Rihanna as Herself Jennifer Hudson as Herself Charlie Wilson as Himself 5 Seconds of Summer as Themselves Iggy Azalea as Herself Anna Camp as Herself Jeremy Piven as Himself Brittany Snow as Herself Ian Ziering as Himself Snoop Dogg as Himself Billy Eichner as Himself Ludacris as Himself Mike Tyson as Himself Sam Smith as Themselves Nick Simmons as Himself Ryan Tedder as Himself Jason Aldean as Himself Nate Ruess as Himself Alesso as Himself Tom Ford as Himself
