James Hetfield is known for being the co-founder, lead vocalist, rhythm guitarist and songwriter for Metallica. He and drummer Lars Ulrich founded the heavy metal band in 1981 after answering a classified advertisment from Lars Ulrich in Los Angeles newspaper The Recycler. Hetfield was ranked number 8 in the top 100 greatest metal guitarists in 2009 and has been placed number 19 in the greatest guitarists of all time. So it is safe to say that hetfield brings good expertise into the band. Hetfield has given Metallica arguably the most iconic sound ever with his voice and hard hitting riffs.
Metallicas official website