Ian Fraser "Lemmy" Kilmister, the iconic singer and bassist of English hard rock band Motörhead, has died of cancer.

The band announced the news in a Facebook post Monday. Lemmy turned 70 on Dec. 24 and was diagnosed on Dec. 26, though he had been battling health problems for years.

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"We will say more in the coming days, but for now, please...play Motörhead loud, play Hawkwind loud, play Lemmy's music LOUD," the band wrote.

Lemmy was born in Staffordshire, England, in 1945. He joined the prog rock band Hawkwind as a bassist in 1972. In 1975, he formed Motörhead, whose throttling hard rock influenced generations of metal and punk bands. Motörhead's most recent album, Bad Magic, was released in August.

Perhaps as much as his music, Lemmy was known for his outlaw persona and rampant drug and alcohol intake (he claimed to have drank a bottle of Jack Daniel's every day, though he had switched to vodka in recent years for "health reasons").

Rock on, Lemmy. Our condolences to the Kilmister family.

Watch the video for Motörhead's signature song "Ace of Spades."