AC/DC Co-founder Malcolm Young Dead at 64

'With enormous dedication and commitment he was the driving force behind the band,' the rock group said of Young on its website

April 15, 2009: Australian hard-rock group 'AC/DC'
April 15, 2009: Australian hard-rock group 'AC/DC' VIA BLOOMBERG NEWS

Malcolm Young, a co-founder of legendary rock band AC/DC, has died, aged 64.

"With enormous dedication and commitment he was the driving force behind the band," the rock group said on its website on Saturday.

"As a guitarist, songwriter and visionary he was a perfectionist and a unique man."

Malcolm formed AC/DC with his brother Angus, both Scottish immigrants, in Sydney in the 1970s. The group has sold some 200 million albums. Its brand of bluesy working-class rock has earned it a massive global following.

In 2014, Young bowed out of the band, after relatives said he had dementia.

Last month, Malcolm's brother, AC/DC mentor George Young, died aged 70.

AC/DC has produced pub anthems such as "Long Way to the Top," "You Shook Me All Night Long," and "Back in Black" as well as other well-known hits, including "Dirty Deeds Done Dirt Cheap" and "Highway to Hell."

The band released its last album, Rock or Bust, in 2014.