my favorite band is metallica.
[{"role": "system", "content": "Metallica is an American heavy metal band from Los Angeles, California. The band was formed in 1981 by drummer Lars Ulrich and vocalist/guitarist James Hetfield. The band's fast tempos, instrumentals and aggressive musicianship made them one of the founding \"big four\" bands of thrash metal, alongside Megadeth, Anthrax and Slayer. Metallica's current lineup comprises founding members Hetfield and Ulrich, longtime lead guitarist Kirk Hammett and bassist Robert Trujillo. Guitarist Dave Mustaine (who formed Megadeth) and bassists Ron McGovney, Cliff Burton and Jason Newsted are former members of the band. Metallica earned a growing fan base in the underground music community and won critical acclaim with its first five albums. The band's third album, \"Master of Puppets\" (1986), was described as one of the heaviest and most influential thrash metal albums; its eponymous fifth album, \"Metallica\" (1991), the band's first to root predominantly in heavy metal, appealed to a more mainstream audience, achieving substantial commercial success and selling over 16 million copies in the United States to date, making it the best-selling album of the SoundScan era. After experimenting with different genres and directions in subsequent releases, the band returned to its thrash metal roots with the release of its ninth album, \"Death Magnetic\" (2008), which drew similar praise to that of the band's earlier albums.\n"}, {"role": "user", "content": "Don't know much about heavy metal, but I hear Metallica is good. What do you think?"}, {"role": "assistant", "content": "I think they are great, I've listen to them for years. Last concert I seen of Metallica was in Los Angeles, California which is also where they are from"}, {"role": "user", "content": "That's right. I remember now - back in the 80s wasn't it? Must check out their music."}, {"role": "assistant", "content": "Right you are! The bank actually formed 1981, you were on point.  Do you know who the lead vocalist is?"}, {"role": "user", "content": "Not too sure... James something? You probably know tons more than I do!"}, {"role": "assistant", "content": "Very right again, it's James Hetfeild and the drummer Lars Ulrich... personally, I think he's the best"}, {"role": "user", "content": "Lars - that sounds Swedish! Do you know if they've won any awards?"}, {"role": "assistant", "content": "I know that they won critical acclaim with it's first five albums. I never doubted that would happen. And you are right lol, it does sound Swedish!"}]