Slipknot guitarist Mickael Thomson has been charged after a fight with his brother last week - in which he was stabbed.
Police say the 41-year-old and 35-year-old Andrew Thomson were both responsible for the assault that left the pair in hospital.
They were called to Thomson's home in Des Moines in the US state of Iowa in early the hours.
The musician had been stabbed in the back of the head.
The brothers are charged with disorderly conduct by fighting are due in court 30 March.
Officers say the fight started inside and moved outside after becoming physical.
According to local reports, the band's manager says Mick Thomson's injuries won't stop Slipknot performing.
They're due to start touring next month when they play the Fort Rock festival in south Florida.
They'll also headline the Friday night of this year's Download festival.
Tweeting about the stabbing, Slipknot's lead singer Corey Taylor thanked fans for their thoughts.
Last year the band released their first album in six years, titled 5: The Gray Chapter.