Ariana Grande is so into Ethan Slater.

As for the proof? The "7 Rings" singer attended the first night of previews for the revival of the Broadway musical Spamalot, of which Ethan plays The Historian/Prince Herbert, in New York City on Oct. 31.

The Grammy winner, 30, was all smiles as she was seen leaving the theater holding a playbill and sporting a crown from the musical with one of her BFFs.

The latest sign of support from Ariana comes a little more than one month after she and her Wicked costar, 31, enjoyed a fun-filled family trip together to a Disney theme park. As for their September outing, a source close to the "Into You" artist—who split from Dalton Gomez earlier this year—told E! News that the couple "went with a big group of friends including her mom and brother."

The insider added that the pair are in a good place amid their romance, noting that they're "really happy and really good for each other," and that "all of her friends love him."

The Voice alum's night out also comes after she and Dalton, who wed in 2021, settled their divorce six months after their initial split. Amid the process of their legal move, a source shared insight on where the former couple stood.

"They were taking their time together to slowly work through the details of the agreement privately before filing," an insider told E! News in September. "They've been really caring and respectful of one another every step of this process. It's been a very kind and patient uncoupling process."

As for Ethan, the Tony nominee filed for divorce from Lilly Jay, his wife of four years with whom he shares a baby boy, back in July.