The first single from the album was "What You Waiting For?", which debuted atop the ARIA Singles Chart, charted at number 47 on the US Billboard Hot 100 and reached the top ten on most other charts. The song served to explain why Stefani produced a solo album and discusses her fears in leaving No Doubt for a solo career as well as her desire to have a baby. "Rich Girl" was released as the album's second single. A duet with rapper Eve, and produced by Dr. Dre, it is an adaptation of a 1990s pop song by British musicians Louchie Lou & Michie One, which itself is a very loose cover lyrically but closer melodically of "If I Were a Rich Man", from the musical Fiddler on the Roof. "Rich Girl" reached the US and UK top ten. The album's third single "Hollaback Girl" became Stefani's first US and second Australian number-one single; it reached top ten elsewhere. The song was the first US music download to sell more than one million copies, and its brass-driven composition remained popular throughout 2005. The fourth single "Cool" was released shortly following the popularity of its predecessor, reaching the top 20 in US and UK. The song's lyrics and its accompanying music video, filmed on Lake Como, depict Stefani's former relationship with Kanal. "Luxurious" was released as the album's fifth single, but did not perform as well as its predecessors. "Crash" was released in January 2006 as the album's sixth single in lieu of Love. Angel. Music. Baby.'s sequel, which Stefani postponed because of her pregnancy.
On September 8, 2014, Stefani told MTV News during New York Fashion Week that she was working on both a No Doubt album and a solo album, and that she was working with Williams. Stefani released her comeback single "Baby Don't Lie" on October 20, 2014, co-written with producers Ryan Tedder, Benny Blanco, and Noel Zancanella. Billboard announced that her third studio album was set to be released in December with Benny Blanco serving as executive producer. In late October, "Spark the Fire", a new track from Stefani's third album, was released. The song was produced by Pharrell Williams. On November 23, the full song premiered online. Both "Baby Don't Lie" and "Spark the Fire" were later scrapped from Stefani's third album. On January 13, 2015, Stefani and Williams also recorded a song titled "Shine", for the Paddington soundtrack. Stefani and Sia worked together on a ballad, called "Start a War" which was expected to be released on Stefani's third studio album as well, but it was not included on the final cut. On July 10, 2015, American rapper Eminem featured Stefani on his single "Kings Never Die", from the Southpaw film soundtrack. The track debuted and peaked at number 80 on the Billboard Hot 100 chart, and matched first-week digital download sales of 35,000 copies. 2b1af7f3a8