Halloween [1] has finally, officially arrived, and celebrities are already stepping out in costume [2]. Kate Hudson [3]'s Halloween party drew stars out on Thursday night, and while Kate's Mothers of Anarchy costume [4] was red hot, Katy Perry [5] took a remarkably different route. That's right, she dressed up as a giant Flaming Hot Cheeto. There's not much else to say about it, except it's a far cry from the extravagance of her 30th birthday party in Marrakech, Morocco [6]. But we're really not complaining, because Katy totally nailed it. Read on for the full effect.