"Californication" is a song by the American rock band Red Hot Chili Peppers, released as the lead single from their seventh studio album of the same name in 1999. Written by band members Anthony Kiedis, Flea, John Frusciante, and Chad Smith, "Californication" is a commentary on the darker side of life in California, addressing themes such as fame, consumerism, and the influence of mass media. The song features a distinctive guitar riff by John Frusciante, a catchy bassline by Flea, and Anthony Kiedis' introspective vocals. "Californication" became one of Red Hot Chili Peppers' most successful songs, reaching high positions on music charts worldwide and receiving critical acclaim for its lyrics, melody, and musical composition. It remains a staple in the band's live performances and is considered one of their signature tracks.