Guitarist stabbed 50 times by bandmates.

Damn.

The singer in an Italian teen gothic metal band and her brother allegedly stabbed the band's guitarist dozens of times because he did not play well enough.

Police in Genoa, on Italy's northwestern coast, said the 16-year-old victim remained in hospital, but his life was not in danger.

He was attacked today after the band Soul Cry rehearsed in Sestri Ponente, a small town near Genoa. He was stabbed about 50 times, mainly to his back and head, said police official Alessandra Bucci in Genoa.

The 18-year-old singer, Cristina Balzano, and her 16-year-old brother, the band's bass player, were arrested on charges of premeditated attempted murder.

During the rehearsal, band members accused the victim of playing poorly, police said. The attack occurred moments later in a narrow alley.

Ms Balzano was caught by police holding a kitchen knife with an 18-cm blade, her brother next to her and the victim in a pool of blood, police said.