In between Randy Jackson and  Alissa White-Gluz who was the founding member of The Agonist? 
Randy Jackson (Zebra): Randy Jackson (born February 28, 1955) is an American rock musician from New Orleans, Louisiana, best known for his role as frontman for the band Zebra. Alissa White-Gluz: Alissa White-Gluz ( ; born July 31, 1985) is a Canadian vocalist, best known as lead vocalist of the Swedish melodic death metal band Arch Enemy, and former lead vocalist and founding member of the Canadian metal band The Agonist.
Alissa White-Gluz