Megadeth has had to cancel many of their upcoming shows, because frontman Dave Mustaine has announced he’s been diagnosed with throat cancer. In a post on Instagram, Mustaine said “I’m working closely with my doctors, and we’ve mapped out a treatment plan which they feel has a 90 percent success rate. Treatment has already begun.” For an updated listed of shows that are cancelled, you can visit megadeth.com. Even with the diagnosis, Mustaine and Megadeth are still fervently working on their follow to the album Dystopia. We wish you all the best in your recovery, Dave!