In Los Angeles, on December 30, actress and singer Cynthia Erivo describes herself as a “crazy person” due to her peculiar habits while flying. She refuses to eat anything on planes and prefers to carry her own food and drinks to maintain her vocal health.

The 38-year-old star shared, “I’m always taking care of it. I don’t drink. I don’t smoke. I’m a crazy person. I don’t eat anything on planes. I bring everything with me: my tea, my water. Someone made a meme of the mug that I carry around because I have it with me everywhere.”

“I have it in several different colors. I won’t be without it because I want my tea to always be warm enough to hydrate me. That’s just how I exist. I will do whatever I need to ensure she’s okay — except apparently take a break,” she revealed to The Hollywood Reporter.

Additionally, Erivo disclosed that she “made a pact” with fellow actress and singer Ariana Grande prior to filming the Wicked movies, as reported by femalefirst.co.uk.

In her book titled Simply More: A Book for Anyone Who Has Been Told They’re Too Much, she explained: “Before Wicked really started rolling, Ariana and I made a pact with each other. We committed to protecting and caring for each other through this process. We often hear how female co-stars, or really any co-stars, can sometimes let their egos clash, damaging the creative process for everyone involved. We were determined to do the opposite.”

Erivo believes that she shares a “strong synergy” with Grande, who has become a close friend over the years.

The London-born actress stated: “We were always looking out for each other. Our partnership was important. We shared a strong synergy, a commitment to authenticity, and that, combined with the natural connection we fostered both on and off set, allowed us to support each other emotionally and professionally.”