New York, New York – Harry Styles has made it very clear that he's a big fan of Halloween, and on Saturday, he marked the spookiest day of the year with a special on-stage look for the final night of his Together, Together residency at Madison Square Garden.

On Friday evening, the 32‑year‑old kicked off the first of two "Harryween" shows dressed as both Elvis Presley and his past self with a recreation of his iconic X-Factor audition look.

On Halloween, Harry leveled things up with a costume inspired by the Big Apple itself: pizza rat!

The musician wore a plush rat costume and dark shades, plus a massive foam pizza slice.

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The look prompted plenty of laughter from the audience. As fans quickly put together, Harry's out-there look was a nod to the wildly viral social media video showing a rodent trying to haul a slice of pizza up a subway staircase.

But it wasn't just the live audience that loved the Halloween costume – countless social media fans were left speechless.

"the feet oh my GOD," one TikTok user commented, while another wrote, "the claws are taking me out."

This year wasn't the first time Harry Styles has dressed up on stage for the spooky holiday.

Five years ago, the singer introduced the so‑called "Harryween" and, for a Halloween performance, dressed as Dorothy from The Wizard of Oz.

In his subsequent show, the singer opted for a slightly more traditional look: he appeared as a clown in a white robe.

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The latest "Harryween" celebration marked the 30th night of his lengthy residency at the world's most famous arena.

To celebrate the milestone, New York Knicks star Jalen Brunson joined Harry on stage to present him with a new arena banner marking 30 consecutive nights.