Frankie Grande gushes over his sister Ariana Grande's performance in Wicked and her relationship with Ethan Slater. At the Gurus Magazine's #30Voices30Days launch party, Frankie praised Slater as a "sweet guy" and expressed his love for him. The Broadway star emphasized the tight-knit nature of the Broadway community. Despite Ariana and Ethan keeping their relationship under wraps, Frankie described Ethan as a "wonderful guy" who makes his sister happy, which is all that matters to him. Frankie emotionally recalled the moment Ariana shared her casting as Glinda the Good Witch, calling it a dramatic and memorable moment. He had the opportunity to visit the Wicked set and witness Ariana and Cynthia Erivo film the iconic song "Defying Gravity," leaving him in tears of pride and admiration for his sister's talent. While refraining from jinxing her, Frankie believes Ariana deserves an Oscar nomination for her outstanding performance.