Gallery Launch Gallery TMZ.com

It's officially Halloween -- which means it's time for TMZ to show off our all-out costumes, reppin' some of pop culture's most iconic moments, entertainment legends and more. TMZ.com

Clearly, our fearless leader Harvey understood the assignment ... dressing up as the redwood tree from Taylor Swift's song "Wood" all while wearing a Kansas City Chiefs jersey -- 'cause we know who Tay's talkin' about in the cheeky song! TMZ.com

We've even got a special Labubu for you -- and no, he's not up for grabs!

Check out the clip -- you'll see the array of characters that walked into our office to celebrate spooky season ... from Katy Perry and Lauren Sanchez up in space to the characters of "Wicked" -- including the yellow brick road! Pla

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