On Saturday, singer-songwriter Todd Snider headlined Nashville’s famed Ryman Auditorium in his continuing support of new album Cash Cabin Sessions: Vol. 3, and the performance featured a special guest appearance from songwriting icon John Prine.

Snider welcomed out Prine after nodding to the 4/20 “holiday,” and the two joined forces for an appropriate rendition Prine’s “Illegal Smile,” which closed Snider’s show at the historic venue. Watch fan-shot video of the collaboration below.

Next up for Snider is a show in St. Louis tomorrow evening. See his full schedule here, and stay tuned for more news about future releases from Snider and his band, Hard Working Americans.