New Orleans guitarist Anders Osborne sat in with Billy Iuso and the Restless Natives at New Orleans’ d.b.a. on Sunday night. Osborne—who has spent the past few months touring with Karl Denson—emerged for a cover of the Grateful Dead’s “Dark Star.” Iuso and Gravity A will perform at New Orleans’ Blue Nile on March 21. For a larger video of Osborne’s sit in, be sure to visit Relix.com