The singer was photographed at the first preview for Spamalot.

Ariana Grande didn’t spend her Halloween night at Heidi Klum’s costume party in New York; instead, she spent it on Broadway, supporting her boyfriend Ethan Slater. Grande was photographed at the first preview show for Spamalot, in which Slater plays The Historian/Prince Herbert.

Grande wore her blonde hair half up, half down and accessorized with lace gloves, along with a crown from the show. She wore a brown cloak and white dress while her friend Doug Middlebrook dressed up as Sir Galahad, per TMZ. Sources close to Grande told the outlet that she has “been having more fun, and going out more often lately,” and that it’s a sign “she feels safer and more able to be herself” in her new relationship with Slater.

Slater and Grande have become a little more public with their relationship in the last two months, with the couple last seen getting dinner on October 21. Eyewitnesses described Grande and Slater as being “super flirty and touchy-feely” during the meal.

Grande is now legally single; her and ex-husband Dalton Gomez finalized their divorce on October 6. Slater was seen leaving court last week from his own divorce proceedings with estranged wife Lilly Jay.

A source told Us Weekly last month that Slater and Grande are now living together. “Ethan informed his friends and soon-to-be ex-wife [Lilly Jay] that he’s living with Ariana full-time in New York,” the source said on October 4. “They’re really happy and really good for each other. All of her friends love him.”