 "Cool" was released as the fourth single from the album on July 5, 2005. The song fared moderately on the charts, reaching the top 10 in Australia and New Zealand, as well as the top 20 in Denmark, Germany, Ireland, Norway, the UK and the US. "Luxurious" was released as the fifth single in October 2005. The single version features rapper Slim Thug. The song was less successful than the previous singles from the album, peaking at number 21 on the Billboard Hot 100. "Crash" was not originally planned as a single, but due to Stefani's pregnancy, her second solo album was delayed, and the song was released as the sixth and final single from the album on January 24, 2006.
