Ariana Grande & Ethan Slater Step Out for DATE NIGHT

Ariana Grande and Ethan Slater have their POV set on Broadway.

The Wicked costars and real-life couple enjoyed a night out on the Great White Way Nov. 12, catching a showing of Gutenberg! The Musical! at the James Earl Jones Theater in New York City. In fact, Ariana, 30, and Ethan, 31, had some time pop backstage and chat with stars Josh Gad and Andrew Rannells, who posted photos of their visit on Instagram.

"We had some big fun in Schlimmer yesterday!" Andrew captioned the snapshots in a Nov. 13 post. "It was a perfect Sunday."

Ariana agreed, sharing an image of her playbill signed by Josh and Andrew…