Crosby & Nash have joined the lineup for the East Coast edition of Wavy Gravy’s 75th Birthday Party. The SEVA benefit show will take place at New York’s Beacon Theatre on Friday, May 27. Previously confirmed acts include: Jackson Browne, Ani DiFranco, Bruce Hornsby, Dr. John, Steve Earle, Allison Moorer, Jorma Kaukonen, Steve Kimock and Buffy Sainte-Marie. Please click here for a look at Wavy Gravy’s West Coast birthday bash.