Stanne was the original vocalist for HammerFall from 1993 until 1996 , after which he was replaced .
Vocalist could n't perform with HammerFall due to vocalist 's 's commitment to Dark Tranquillity .
Stanne was the original vocalist for HammerFall from 1993 until 1996 , after which he was replaced because he could n't perform with HammerFall due to his commitment to Dark Tranquillity .