Beavis and Butt-head creator Mike Judge gathered some of the weirdest A list celebrities for Metallica drummer Lars Urlich’s bachelor party. Prepare to be incredibly confused.

According to People, the bachelor party started at a bowling alley in a private lane and the guest list included Metallica frontman James Hetfield, Bradley Cooper, and Sir Ian McKellan. That’s right, Gandalf showed up to Lars Ulrich’s bowling bachelor party!

If that wasn’t enough, later on in the night the guest list continued to make no sense, seeing as Peter Coyote, Michael Fassbender, and tennis star Brad Gilbert showed up to join them for dinner. In case you’re wondering who Peter Coyote is, he played the government agent “Keys” in the movie E.T. the Extra-Terrestrial… so of course he would be there.

If this is what his bachelor party looked like, we can’t wait to see how insane his wedding guest list.