DETROIT (Reuters) - Michigan prosecutors have charged Grammy-nominated singer Jack White of the band The White Stripes with aggravated assault following a fight with another singer at a Detroit club. White, 28, could face a prison charge of up to a year if convicted on the aggravated assault charge stemming from an unprovoked attack on Jason Stollsteimer, the singer from the local garage rock band the Von Bondies, the prosecutor for Wayne County, Michigan said. White approached Stollsteimer, 25, at the Magic Stick club in Detroit on December 13, spat on him, and punched him in the face, the...