In the pantheon of metal, few riffs command as much reverence as the opening riff of Metallica's "Master of Puppets."

"Whole Lotta Love" by Led Zeppelin is a cornerstone of rock music, featuring one of the most recognizable and powerful guitar riffs.

"Smoke on the Water" by Deep Purple is one of the most iconic and easily recognizable guitar riffs in rock history.

Few riffs in rock music can match the electrifying energy and sheer power of AC/DC's "Thunderstruck."

"Purple Haze" by The Jimi Hendrix Experience is one of the most iconic and influential songs in rock history.

Few guitar riffs are as instantly recognizable and beloved as the opening notes of "Sweet Child O' Mine" by Guns N' Roses.