"Cool" is a song by American singer Gwen Stefani from her debut solo studio album Love. Angel. Music. Baby. (2004). Written by Stefani and Dallas Austin, the song was released as the fourth single from L.A.M.B. on July 5, 2005, by Interscope Records. It was written by Austin basing the song on No Doubt's 2000 single "Simple Kind of Life", but he did not finish it. He then asked for help from Stefani and they finished the song in 15 minutes. The song's musical style and production were inspired by synth-pop and new wave arrangements from the 1980s, and its lyrics chronicle a relationship in which two lovers have separated, but remain "cool" with each other as good friends.
"Cool" received generally positive reviews from music critics, being compared to Cyndi Lauper and Madonna songs from the 1980s. The media have drawn parallels between the song's lyrical content and the romantic relationship that Stefani had with Tony Kanal, a fellow band member of No Doubt. "Cool" was moderately successful on the charts around the world, peaking within the top-ten in Australia, the Netherlands, the Czech Republic and New Zealand, as well as the top 20 in Denmark, Ireland, Norway, the United Kingdom and the United States.
The accompanying music video for "Cool" was directed by Sophie Muller and filmed in Lake Como, Italy. It features many flashbacks to when Stefani and her former boyfriend were dating, and currently, both are fine with their friendship. "Cool" was included on the setlist for Stefani's debut solo tour Harajuku Lovers Tour and its accompanying video album, as well as in the 2006 comedies Last Holiday and Click and the 2010 drama Somewhere.[1]