"Master of Puppets" is a song by the American heavy metal band Metallica, released in 1986 as the title track of their third studio album. The song is known for its complex structure, heavy riffs, and powerful lyrics that explore themes of addiction and manipulation. It is often regarded as one of the band's signature songs and a classic in the heavy metal genre. The album, also titled Master of Puppets, received critical acclaim and is considered one of the greatest albums in rock history. It was the last Metallica album to feature bassist Cliff Burton, who tragically died in a bus accident in 1986. The song and album have had a lasting impact on music and culture, influencing countless artists and fans.