Shocker alert! Frontman Adam Gontier has resigned from Three Days Grace just weeks prior to their upcoming co-headlining tour with Shinedown. The band has replaced Gontier with My Darkest Days singer Matt Walst for the trek.
My Darkest Days are down a member as they start to work on their next album. The band revealed via their social networks that guitarist Sal Costa (pictured at right above) is leaving the group after three years of growth and success.