Raconteurs and White Stripes frontman Jack White, whose debit solo album his stores April 23rd, was announced as a co-headliner Wednesday for the upcoming Firefly Music Festival along with the Black Keys and the Killers.  Death Cab for Cutie, Lupe Fiasco and dozens of other acts are also on the bill.  Firefly will take place July 20-22 at the Woodlands at Dover International Speedway.  A limited number of Early Bird General Admission tickets went on sales Thursday afternoon.  Click Here for more info.