MusicRadar.com will be sitting down with the Dream Theater's Mike Portnoy next week as the band begins their "Final Frontier Tour" with Iron Maiden. In preparation, the musician-focused website is now taking question suggestions from fans. Submit yours via facebook, twitter (@musicradar) or their website. Check out all the details on the interview here, and pick up your copy of Dream Theater's latest epic work, Black Clouds and Silver Linings.