Bob Weir sat in with the Allman Brothers Band again last night at Hershey, PAs Star Pavilion. On Saturday Weir joined Warren Haynes and Derek Trucks for a stripped down take on I Shall Be Released and last night the guitarist joined the entire Allman Brothers Band for another cover from the Bob Dylan catalogue, Highway 61 Revisited. In addition, Weirs RatDog bandmates Jeff Chimenti (keyboards) and Kenny Brooks (saxophone) augmented the Allmans on The Same Thing. Earlier in the night, Haynes also popped up with RatDog for runs through St. Stephen and The Eleven that came complete with a William Tell Bridge. Both groups will appear at Clarkston, MIs DTE Energy Music Theatre this Wednesday.