Polish heavy metal band Crystal Viper have cancelled their performance at Pax Julia Metal Fest in Portugal, which was scheduled for November 15th, 2014 due to frontwoman Marta "Leather Wych" Gabriel's health, even though they didn't explain further. According to the fest, this would be the band's first time playing in Portugal.

Here is the band's statement: "With deep regret and sadness, we need to inform you, that due to Marta Gabriel's health condition, we are forced to cancel Crystal Viper's live show at the Pax Julia Metal Fest in Portugal, scheduled for November 15, 2014, and all currently planned Crystal Viper live shows. Thank you for understanding and support."

Source:	facebook.com
Band profile:	Crystal Viper