Jon Fishman will rejoin the Yonder Mountain String Band for next month. The former Phish drummer first played with Yonder in Denver last September and has performed with the newgrass outfit a number of times since, most recently in Asheville, NC on February 21. His next gig with the group will take place at San Francisco, CAs The Warfield on April 18 during the Green Apple Music & Arts Festival. More information about the third annual music festival will be announced later this week. As for Yonder , the group will (no joke) appear at Fayetteville, ARs George’s Majestic Lounge on April 1.