By Sandra Gonzalez
July 10, 2013 at 02:00 PM EDT

The cantina is about to get wild. Patton Oswalt is behind the bar. Billy Dee Williams is waiting to get on stage for a karaoke performance. And Jason Schwartzman just finished trying to sweet talk a Twi’lek.

It’s anything but a common day at Nerdist Industries but it’s certainly a freaking awesome one.

The aforementioned celebs — as well as Carrie Keagan and Chris Hardwick — are all on hand to make cameos in a Star Wars musical tribute to help promote Course of the Force, a lightsaber relay-run that Hardwick’s Nerdist is doing for the second year in conjunction with Lucasfilm, ahead of San Diego Comic-Con. “Anything to make nerds seem more athletic, I’m for,” jokes Oswalt. “Anything where we’re moving around in the sunlight and busting those stereotypes, I support 1,000 percent.”

Proceeds from the race, which kicked off yesterday at Skywalker Ranch and will end in San Diego, will benefit the Make-a-Wish Foundation. For Keagan, who was drafted into the project by former Attack of the Show co-star Hardwick, the event is “sort of the essence of everything Comic-Con is about.”  “You get to show your support for the geekness that you have inside of you, and if people can take the Olympic torch and be proud of that, there’s no reason we can’t take the lightsaber and be just as proud of that because it means just as much to us,” she says. “It’s such a diverse group of people who come together and we all come together because of this one love of nerdiness. It’s such a wonderful thing.”

In the video, which you can watch below for the first time exclusively on, a bar filled with characters from Star Wars break into song, specifically a rousing rendition of Coconut Records’ “West Coast,” which was written by Schwartzman. “For me, it seemed like an incredible thing,” the actor says. “I heard the reproduction of the song in the cantina [band] style and it blew my mind. I’m not a crier, but if I was, I would have been crying.”

Once they call “Action” there are no tears, however, just the surreal feeling one might expect when witnessing a bar full of beloved creatures singing “Sweet Caroline.” It’s a strange sight, for sure. But also so good, so good, so good.