Ariana Grande makes her relationship with 'Wicked' co-star Ethan Slater Instagram-official with a photo from the film's Australian premiere.

Ethan Slater had nothing but praise for his girlfriend, Ariana Grande, while discussing her turn as Galinda in the upcoming film adaptation of Wicked. “She’s a comedy genius,” Slater, 32, said of Grande,

Ethan Slater praised girlfriend Ariana Grande’s performance in Wicked for a specific reason, saying she and Cynthia Erivo are “beautiful and nuanced and unbelievable.”