Pink Floyd was formed in 1965 in London, England, and achieved widespread popularity in the 1970s with their progressive rock albums, including "The Dark Side of the Moon" (1973) and "Wish You Were Here" (1975). The band is known for its experimental and psychedelic sound, as well as its elaborate live shows.
Metallica was formed in 1981 in Los Angeles, California, and rose to fame in the 1980s with its heavy metal albums, including "Master of Puppets" (1986) and "Metallica" (1991, commonly known as "The Black Album"). The band is known for its aggressive and energetic music, as well as its powerful live performances.
In terms of commercial success, both Pink Floyd and Metallica have achieved significant milestones. Pink Floyd has sold over 250 million records worldwide, making them one of the best-selling music artists of all time. Metallica has sold over 125 million records worldwide, solidifying their status as one of the most successful heavy metal bands of all time.
When it comes to critical acclaim, both Pink Floyd and Metallica have received numerous accolades and recognition. Pink Floyd has won seven Grammy Awards, including Album of the Year for "The Dark Side of the Moon," and was inducted into the Rock and Roll Hall of Fame in 1996. Metallica has won nine Grammy Awards, including Best Rock Album for "Metallica," and was inducted into the Rock and Roll Hall of Fame in 2009.
Overall, it's difficult to definitively say which band is more popular because both have achieved immense success and critical acclaim in different genres. Pink Floyd is considered one of the greatest progressive rock bands of all time, while Metallica is regarded as one of the most influential heavy metal bands of all time. Ultimately, it's a matter of personal preference and musical taste as to which band resonates more with an individual listener.