Which Metallica co-founder wrote the power ballad "Mama Said"?
Mama Said (Metallica song): "Mama Said" is a power ballad by American heavy metal band Metallica from their sixth album "Load", with music and lyrics by James Hetfield (music credited to Hetfield/Ulrich). James Hetfield:  Hetfield co-founded Metallica in October 1981 after answering a classified advertisement by drummer Lars Ulrich in the Los Angeles newspaper "The Recycler".
James Hetfield