Cast:
Ryan Seacrest, Auli'i Cravalho, James Monroe Iglehart, Donny Osmond, Demi Lovato, Ariana Grande, Amber Riley, Kristin Chenoweth, Christina Aguilera, Jordan Fisher, Kenny Ortega, Josh Groban, Michael Bublé, Beyoncé, Derek Hough, Hayley Erbert, Julianne Hough, Darren Criss, John Stamos, Josh Gad, Luke Evans, Alan Menken, Erin Andrews, Bobby Bones, Carrie Ann Inaba, Marcus Scribner, Tori Kelly, Thomas Rhett, Olivia Rodrigo, Joshua Bassett, Ashley Tisdale, Sofia Wylie, Corbin Bleu, Monique Coleman, Lucas Grabeel, Matt Cornett, Frankie A. Rodriguez, Zac Efron, Julia Lester, Dara Reneé, Larry Saperstein, Joe Serafini, Kaycee Stroh, Dove Cameron, Booboo Stewart, Heidi D'Amelio, Marc D'Amelio, Sarah Jeffery
