During the past two nights in the Midwest, the Drive By Truckers opened for Widespread Panic and added some additional guitars to the mix. On Tuesday at Cincinnatis Riverbend Music Center, Jason Isbell and Patterson Hood appeared during the Life During Wartime and Red Hot Mama encores. Last night at Noblesvilles Deer Creek Amphitheater, the two joined in once again along with DBT guitarist Mike Cooley at the beginning of the second set for a cover of Let It Bleed. The Deer Creek show marks the last bill that the two groups will share this summer, as Panic tour resumes tomorrow in Charlotte.