As of 2015, Shawn Drover was Megadeth's longest-serving drummer, having been a member of the band for just over 10 years, and had the third-longest tenure in the band after only bass guitarist David Ellefson and guitarist and frontman Dave Mustaine. On November 25, 2014 Drover announced his departure from Megadeth, wanting to pursue his own musical interests. Following his departure from Megadeth, Drover teamed up with Chris Broderick, who left Megadeth the same day as him, to form Act of Defiance with vocalist Henry Derek and bassist Matt Bachand.