Willie Nelson’s traveling Outlaw Music Festival is storming stadiums and pavilions across the US this summer. The annual festival made a stop at the Hollywood Casino Amphitheater in St. Louis last week.

St. Louis’ lineup included Willie Nelson & Family, Phil Lesh & Friends, Alison Krauss, Old Crow Medicine Show and Dawes. During Phil’s set, Alison Krauss joined the founding Grateful Dead member on stage for one of the Dead’s all-time classics—”Morning Dew.” Alison’s angelic voice was the perfect compliment to the song. Stu Allen really nailed the guitar solo as well.

Thanks to Jason Briggs for the footage!

Photo credit: nitch1