Barack Obama has the Dead on his side again.The Democratic presidential candidate’s campaign has confirmed a long-rumored fundraising concert that will include four remaining members of the Grateful Dead at Penn State University’s Bryce Jordan Center. Bob Weir, Phil Lesh and Mickey Hart played at a get-out-the-vote concert in February in California for the campaign. A Pennsylvania spokeswoman for the campaign says the trio will be joined by a fourth surviving member, Bill Kreutzmann, at the Oct. 13 show in State College. Other rockers expected to attend include members of the Allman Brothers Band. Tickets go on sale Friday.