Willie Nelson hosted his long-running annual 4th of July Picnic outside Austin, TX, yesterday, celebrating the holiday with a day of music featuring Nelson & Family, Sturgill Simpson, The Head and the Heart, Margo Price, Lukas Nelson & Promise of the Real, Edie Brickell & the New Bohemians, Ryan Bingham and more, and Nelson and his band closed out the evening with a medley of traditional songs that featured a number of onstage guests.

One of the more notable guests was Beto O’Rourke, a Texas Democratic politician currently in the US House of Representatives who is campaigning for Senate this fall against Ted Cruz. O’Rourke, decked out in an “I Love El Paso” t-shirt, busted out his guitar to join Nelson and company (including son Lukas) for “Roll Me Up and Smoke Me When I Die” before “It’s All Going to Pot,” which added Margo Price, members of The Head and the Heart and more. The collective then stuck around to help close out the Picnic with a traditional medley of “Will the Circle Be Unbroken” and “I’ll Fly Away.”

O’Rourke (who happens to be a former bandmate of The Mars Volta/At the Drive-In guitarist Cedric Bixler-Zavala), shared a video of the collaboration via his official Facebook page. Watch below (h/t Consequence of Sound).