Legacy and influence
Metallica has become one of the most influential heavy metal bands of all time, and is credited as one of the "big four" of thrash metal, along with Slayer, Anthrax, and Megadeth. The band has sold more than 125 million records worldwide, including an RIAA-certified 66 million and Nielsen SoundScan-reported 58,000,000 in the US, making Metallica one of the most commercially successful bands of all time. The writers of The Rolling Stone Encyclopedia of Rock & Roll said Metallica gave heavy metal "a much-needed charge". Stephen Thomas Erlewine and Greg Prato of Allmusic said Metallica "expanded the limits of thrash, using speed and volume not for their own sake, but to enhance their intricately structured compositions", and called the band "easily the best, most influential heavy metal band of the '80s, responsible for bringing the music back to Earth".
Jonathan Davis of Korn said he respects Metallica as his favorite band; he said, "I love that they've done things their own way and they've persevered over the years and they're still relevant to this day. I think they're one of the greatest bands ever." Godsmack drummer Shannon Larkin said Metallica has been the biggest influence on the band, stating, "they really changed my life when I was 16 years old—I'd never heard anything that heavy". Vocalist and guitarist Robb Flynn of Machine Head said that when creating the band's 2007 album, The Blackening, "What we mean is an album that has the power, influence and epic grandeur of that album Master of Puppets—and the staying power—a timeless record like that". Trivium guitarists Corey Beaulieu and Matt Heafy said that when they heard Metallica they wanted to start playing guitar. M. Shadows of Avenged Sevenfold said touring with Metallica was the band's career highlight, and said, "Selling tons of records and playing huge shows will never compare to meeting your idols Metallica". God Forbid guitarists Doc and Dallas Coyle were inspired by Metallica as they grew up, and the band's bassist John Outcalt admires Burton as a "rocker". Ill Niño drummer Dave Chavarri said he finds early Metallica releases are "heavy, raw, rebellious. It said, 'fuck you'", and Adema drummer Kris Kohls said the band is influenced by Metallica.
On April 4, 2009, Metallica were inducted into the Rock And Roll Hall Of Fame. They entered the Rock and Roll Hall of Fame the second year they were eligible and first year they were nominated. Metallica's induction into the Hall included its current lineup, James Hetfield, Kirk Hammett, Robert Trujillo, and Lars Ulrich, and former members Jason Newsted and Cliff Burton.
MTV ranked Metallica the third "Greatest Heavy Metal Band in History". Metallica was ranked 42nd on VH1's "100 Greatest Artists Of All Time", was listed fifth on VH1's "100 Greatest Artists of Hard Rock", and the band was number one on VH1's "20 Greatest Metal Bands" list. Rolling Stone placed the band 61st on its list of "The 100 Greatest Artists of All Time"; its albums Master of Puppets and Metallica were ranked at numbers 167 and 252 respectively on the magazine's list of The 500 Greatest Albums of All Time. Master of Puppets was named in Q Magazine's "50 Heaviest Albums of All Time", and was ranked number one on IGN's "Top 25 Metal Albums", and number one on Metal-rules.com's "Top 100 Heavy Metal Albums" list. "Enter Sandman" was ranked number 399 on Rolling Stone's "500 Greatest Songs of All Time".
Kerrang! released a tribute album titled Master of Puppets: Remastered with the April 8, 2006, edition of the magazine to celebrate the 20th anniversary of Master of Puppets. The album featured cover versions of Metallica songs by Machine Head, Bullet for My Valentine, Chimaira, Mastodon, Mendeed, and Trivium—all of which are influenced by Metallica. At least 15 Metallica tribute albums have been released. On September 10, 2006, Metallica guest starred on The Simpsons' eighteenth-season premiere, "The Mook, the Chef, the Wife and Her Homer". Hammett's and Hetfield's voices were used in three episodes of the animated television series Metalocalypse. Finnish cello metal band Apocalyptica released a tribute album titled Plays Metallica by Four Cellos, which features eight Metallica songs played on cellos. A parody band named Beatallica plays music using a combination of The Beatles and Metallica songs. Beatallica faced legal troubles when Sony, which owns The Beatles' catalog, issued a cease and desist order, claiming "substantial and irreparable injury" and ordering the group to pay damages. Ulrich, a fan of Beatallica, asked Metallica's lawyer Peter Paterno to help settle the case.
On March 7, 1999, Metallica was inducted into the San Francisco Walk of Fame. The mayor of San Francisco, Willie Brown, proclaimed the day "Official Metallica Day". The band was awarded the MTV Icon award in 2003, and a concert paying tribute to the band with artists performing its songs was held. Performances included Sum 41 and a medley of "For Whom the Bell Tolls", "Enter Sandman", and "Master of Puppets". Staind covered "Nothing Else Matters", Avril Lavigne played "Fuel", hip-hop artist Snoop Dogg performed "Sad but True", Korn played "One", and Limp Bizkit performed "Welcome Home (Sanitarium)".
The Guitar Hero video game series included several of Metallica's songs. "One" was used in Guitar Hero III. The album Death Magnetic was later released as purchasable, downloadable content for the game. "Trapped Under Ice" was featured in the sequel, Guitar Hero World Tour. In 2009, Metallica collaborated with the game's developers to make Guitar Hero: Metallica, which included a number of Metallica's songs. Harmonix' video game series Rock Band included "Enter Sandman" and "Battery"; "Ride the Lightning", "Blackened", and "...And Justice for All" were released as downloadable tracks. In 2013, due to expiring content licenses, "Ride the Lightning", "Blackened", and "...And Justice for All" are no longer available for download.