Gather around, come near, because Halloween's finally here, and we're looking back at our favorite celebrity costumes over the years!

But don't worry, boys and ghouls, you won't catch a fright, it's all in good fun, especially when the stars go trick-or-treating at night!

We've got images of Harry Styles , Lizzo , and Nick Cannon in store -- wait, did you think that was it? No, there's way more!

Check out our video -- it's begging to be seen -- and from all of us at TMZ, have a Happy Halloween!

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