Ariana Grande Sings ‘O Christmas Tree’ With Robert De Niro & Ben Stiller on ‘Tonight Show’: Exclusive Preview

Ariana Grande, Robert De Niro and Ben Stiller sing “O Christmas Tree” in a preview from a special episode of The Tonight Show Starring Jimmy Fallon. The performance coincides with the arrival of the 2026 Rockefeller Center Christmas tree and promotes their upcoming film, Focker-in-Law.

Grande leads the carol and impresses the audience with high notes, while Stiller joins in and De Niro’s performance is left for viewers to discover in the clip. The three actors will appear together on the 8 November show, alongside musical guest Lil Baby; Focker-in-Law is due in cinemas on 25 November. The episode is one of four special Tonight Show broadcasts following Sunday Night Football this season.