Blue is the second studio album by American rock band Third Eye Blind, released on November 23, 1999. The album's creation was difficult, mainly due to power struggles and arguments between frontman Stephan Jenkins and lead guitarist Kevin Cadogan, leading to a quick but isolated recording experience between members. The album was generally well received by critics, and was certified platinum by the RIAA, but performed below the band's prior album, the multi-platinum Third Eye Blind. While managing to stay together for the creation of the album, shortly after its release, the band fired Cadogan, touring in support of the album with replacement guitarist Tony Fredianelli.

Third Eye Blind is an American rock band formed in San Francisco, California, in 1993. After years of lineup changes in the early and mid-1990s, the songwriting duo of Stephan Jenkins and Kevin Cadogan signed the band's first major-label recording contract with Elektra Records in 1996. The band released their self-titled debut album in 1997, with the band largely consisting of Jenkins, Cadogan, Arion Salazar, and Brad Hargreaves (drums). Shortly after the release of the band's second album in 1999, Blue, with the same line-up, Cadogan was released from the band under controversial circumstances.