Metallica frontman James Hetfield has responded to Kendall and Kylie Jenner for taking iconic album art of his band's and selling it on T-shirts with their faces plastered over the top, suggesting they "show some respect".
The reality TV stars had to cancel a clothing line that featured their Instagram images overlaid upon classic art from the likes of the Notorious B.I.G., Pink Floyd, the Doors, Ozzy Osbourne, Tupac and Kiss.
Hetfield, a founding member of Metallica who sings and plays rhythm guitar for the 'Creeping Death' rockers, hit out at the T-shirts in a recent interview with ET Canada.
"I guess what they were thinking is, 'We can do whatever we want'. To me, it's disrespectful," says Hetfield.
"We've spent 36 years working hard, doing our best to keep a really close connection with people, make every note count, and someone just throws something up over something that we feel... Not that it's sacred or anything, but show some respect."
The Keeping Up with the Kardashians stars had included Metallica's Kill 'Em All art in their clothing range, which was being sold at US$125 per item.
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Hetfield is certainly not the first person to criticise the T-shirts, which the Jenners admitted themselves were "not well thought out".
Voletta Wallace, mother of the late Christopher Wallace (aka Notorious B.I.G.), labelled them "disrespectful, disgusting, and exploitation at its worst".
Sharon Osbourne, wife of Black Sabbath legend Ozzy, also admonished the Jenner sisters.
"Girls, you haven't earned the right to put your face with musical icons. Stick to what you know... lip gloss," she said.
Slayer's Gary Holt also chimed in, saying he "hated their guts".