Ariana Grande was "nervous" when she sat next to Kristin Chenoweth at the 'Wicked' premiere.
The 31-year-old pop star has taken on the role of Glinda the Good Witch in the upcoming adaptation of the hit musical and "held hands" with her close friend Kristin - who originated the part on Broadway - at one of the first screenings of the film, but just needed to know if she had made her "proud" with what she had done.