Special Guest Stars Taylor Swift as Herself Mandy Moore as Herself (Guest Judge) Guest Stars Val Chmerkovskiy as Himself Sasha Farber as Himself Artem Chigvintsev as Himself Daniella Karagach Pashkova as Herself (Daniella Karagach) Pasha Pashkov as Himself Alyson Hannigan as Herself Ariana Madix as Herself Jason Mraz as Himself Xochitl Gomez as Herself Charity Lawson as Herself Rylee Arnold as Herself Harry Jowsey as Himself