Ariana Grande's red carpet return was worth ... featuring an exaggerated off-the-shoulder puff sleeve cape and a long train by Giambattista Valli Haute Couture, paying homage to her character ...

Ariana Grande—who plays Glinda in the forthcoming ... The look featured a plunging corset layered underneath a sheer long-sleeve knit turtleneck, as well as a voluminous silk skirt.

Earlier this week, Ariana Grande announced a deluxe version of her Eternal Sunshine album - but it turns out she had more tricks up her sleeve ... posted a seconds-long teaser for the project.