Ariana Grande can link one song to her entire life as a performer, from her childhood days singing for her grandpa to her life as a global pop superstar to her performance as Galinda in Wicked. That song is Over the Rainbow. Ariana talks with Marc about the constant presence of music in her life, how she developed her songwriting process, why she sought out a vocal coach for Wicked, how she protects her mental health in an emotionally demanding business, and more.

Brendan McDonald