Guest Stars Adam Sandler as Himself Heidi Klum as Herself Jace Norman as Himself Selena Gomez as Herself Robert Downey Jr. as Himself (Robert Downey, Jr.) Keke Palmer as Herself JoJo Siwa as Herself Zendaya as Herself Kira Kosarin as Herself Dove Cameron as Herself Jack Griffo as Himself Chris Evans as Himself Rico Rodriguez as Himself Kel Mitchell as Himself Camila Cabello as Herself Ally Brooke as Herself Amy Poehler as Herself Grant Gustin as Himself Benjamin Flores Jr. as Himself Sarah Hyland as Herself Debby Ryan as Herself Ellen DeGeneres as Herself Josh Gad as Himself Lizzy Greene as Herself Breanna Yde as Herself Lauren Jauregui as Herself Nia Sioux Frazier as Herself Normani as Herself Maddie Ziegler as Herself Bethany Mota as Herself Dinah Jane Hansen as Herself Anthony Anderson as Himself Chloe Bennet as Herself Andy Samberg as Himself Jason Sudeikis as Himself John Stamos as Himself Nick Jonas as Himself Casey Simpson as Himself Diego Velazquez as Himself Addison Riecke as Herself Mackenzie Ziegler as Herself Will Arnett as Himself Laura Marano as Herself Mace Coronel as Himself Kalani Hilliker as Herself Cree Cicchino as Herself Pharrell Williams as Himself Madisyn Shipman as Herself Meghan Trainor as Herself Rob Gronkowski as Himself Brec Bassinger as Herself Rosa Blasi as Herself Aidan Gallagher as Himself Adam Levine as Himself Thomas Kuc as Himself Chris Tallman as Himself Buddy Valastro as Himself Cameron Dallas as Himself Kendall Vertes as Herself Wiz Khalifa as Himself (Performer) DNCE as Themselves (Performer) Taylor Caniff as Himself Neel Sethi as Himself Charlie Puth as Himself (Performer)