The "Dark Horse" is unstoppable! Setting the tour circuit ablaze in 2009, Nickelback has accrued some 120 tour dates since the Dark Horse World tour first clicked its heels in the scene. This time, Nickelback will rock out at 25 dates across the country with special guests Three Days Grace and Buckcherry from September to October 2010 (think they'll take a holiday break afterward?) So are you diggin' the Dark Horse?