Ariana Grande had a significant transformation before and after taking on the role of Glinda in the 2024 film adaptation of the musical Wicked. She had long desired this role and auditioned for it multiple times, starting when she was 20. Over the years leading up to the film, her look gradually shifted from her signature style with thick black eyeliner and a high ponytail to a more cutesy, softer appearance with blonde hair, which was part of her transformation into Glinda. Her makeup and hair styling evolved dramatically during the filming and promotional periods, reflecting her full immersion into the character. The transformation was both physical and professional, with Grande taking acting and singing lessons to perfect her portrayal of Glinda, stepping beyond her established pop star persona to be recognized as an actress in this iconic role.
If more visual examples of her before and after transformation are desired, there are photos and videos available from the time right before she was cast, through the filming, and the press tour for the movie.