The Conjuring star is featured on her duets album Encore: Movie Partners Sing Broadway, and he recently joined her onstage in New York and Florida, alongside actor Jamie Foxx.

"I was not so secretly hoping that if she went on tour that they would ask us to sing," he told U.S. breakfast show Good Morning America. "They asked us to sing both shows at the Barclays Center. I sang with her and Jamie Foxx last week and I sang with her in Miami and they recorded (it) for Netflix."

Nervous Wilson admits he couldn't believe how calm he was when it came time to sing with the legend.

"It's unbelievable, it's a dream come true," he said, "but what I will say is, what is amazing about it is, when you get up there everything went away because of who she is when you're performing with her. Everything else was crazy and daunting and then you get up there and you're just like, 'No, no were just singing'. She just calms you down. It was unusually calm."