Hart, Lesh, and Weir reunited again in support of the Obama presidential campaign, this time joined by Bill Kreutzmann, on October 13, 2008, in the Bryce Jordan Center at Penn State University, playing a concert called "Change Rocks". Warren Haynes provided guitar and vocal support for the reunion, and Jeff Chimenti played keyboards. The performance was preceded by a set of music by members of the Allman Brothers Band.