This experimentation was taken further on their next album with Owens , 2001 's Demolition .
This experimentation was was once more abandoned when the band 's former vocalist , Rob Halford , returned to the band .
This experimentation was taken further on their next album with Owens , 2001 's Demolition , but was once more abandoned when the band 's former vocalist , Rob Halford , returned to the band .