Ariana Grande Swarmed by Fans While Seeing BF Ethan Slater in 'Spamal

SplashNews.com

Ariana Grande's supporting her boyfriend, Ethan Slater, by hitting Broadway to watch his latest role in "Spamalot" -- and that means coming face-to-face with tons of her fans for the first time in a long time.

The crowd was waitin' for the singer outside the St. James Theater Tuesday night, where Ariana was checking out Ethan's performance in the Monty Python musical -- she left the show with a pal, her Playbill and a "Spamalot" paper crown.

Obviously, word got 'round that Ari was catching the show on Halloween, because loads of folks greeted her once the musical was over, and a lot wanted to snap pics with the singer ... but it sounded like she was a bit nervous for people's safety and instead took to the car.

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