Complex sentence: Metallica is an American Grammy Award-winning heavy metal band formed in 1981, which consists the lineup of vocalist, rhythm guitarist and main songwriter, James Hetfield along with the drummer Lars Ulrich, lead guitarist Kirk Hammett and bassist Robert Trujillo.
Split into simpler sentences: Metallica is an American Grammy Award-winning heavy metal band formed in 1981. Metallica consists the lineup of vocalist and rhythm guitarist James Hetfield who is the main songwriter, along with the drummer Lars Ulrich, lead guitarist Kirk Hammett and bassist Robert Trujillo.