And on the big day itself, the epic costumes just kept rolling in.
Even though spooky season is almost over for another year, there are still plenty of A-list costumes you might have missed, and we’ve rounded up some more of our favourites for you below…
Speaking of costumes that gave us 2000s nostalgia – here’s what Kendall Jenner and Hailey Bieber were serving
And in a case of “great minds think alike”, the Halloween queen herself Heidi Klum turned out this look inspired by E.T.
