Megadeth's Dave Mustaine has been diagnosed with throat cancer

Megadeth lead vocalist has just announced he has been diagnosed with throat cancer.

Mustaine, who co-founded the heavy metal band after leaving Metallica in 1983, shared the news with fans on Monday, writing in a Facebook post that this is "clearly something to be respected and faced head on" but that "I've faced obstacles before" and that he and his doctors have "mapped out a treatment plan which they feel has a 90 percent success rate."

Although the band is canceling "most" of its remaining 2019 shows as a result, Mustaine says that "in some form," they will remain involved in an October "Megacruise" they had planned. Megadeth had a summer tour planned to commemorate its 35th anniversary, Variety reports.

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Still, Mustaine says the band is continuing to work on its next album, which he writes that he "can't wait for everyone to hear," and he promises that "Megadeth will be back on the road ASAP."