a couple's costume. Gerber and Butler attended the annual Casamigos Halloween party as model Edie Sedgwick and pop artist Andy Warhol, respectively. Each wore a spiky wig and all black ...

And Ross Butler ... duo we didn’t know we needed: Wolverine and Gaston. The 13 Reasons Why star took to Instagram on Saturday, October 27, to share a video of himself and Noah in full costume ...

The twosome dressed casually in matching all-black ... Butler sporting a hoodie and trucker hat. Gerber, meanwhile, donned a long sleeve shirt, opting to keep her hair down around her shoulders ...