Home Jambase Warren Haynes Guests With The Ron Holloway Band In D.C.National Music NewsJambaseMusicWarren Haynes Guests With The Ron Holloway Band In D.C.May 21, 2017163FacebookTwitterPinterestWhatsApp Warren Haynes returned the favor by sitting in with The Ron Holloway Band at their late-night Gov’t Mule after-party in D.C.