the United States in 2004. Their next album, Monkey Business, was released on June 7, 2005, and debuted at number two on the U.S. Billboard 200 albums chart, selling over 295,000 copies in its first week and was later certified triple platinum by the RIAA. Their next and last commercially released single from the album was "Pump It", which borrows much of its sound from "Misirlou", specifically Dick Dale's version; it peaked at number 8 in Australia but 18 in America. The album's first single, "Don't Phunk with My Heart", was a hit in the United States, reaching number three on the U.S. Hot 100 and earned them another Grammy for Best Rap Performance by a Duo or Group. "Don't Lie", the second single from the album, saw success on the U.S. Hot 100, reaching No. 14, although becoming somewhat more successful in the UK and Australia, reaching a peak of No.6 in both countries. "My Humps", another song from the album, immediately achieved commercial success in the U.S. and fairly substantial radio play despite the sexually suggestive lyrics, reaching number three on the U.S. Hot 100 and number one in Australia, making it their fourth Australian number one single. However, many mocked the song for its poor lyrical content; John Bush, writing for AllMusic, described it as "one of the most embarrassing rap performances of the new millennium". Later in 2005, the Black Eyed Peas toured with Gwen Stefani, as supporting act. In December 2005, they embarked on the "European Tour". In March 2006, the Black Eyed Peas toured again, as the featured headliner for the Honda Civic Tour. 2006–2008: The Dutchess Fergie's debut solo album, The Dutchess, was released in September 2006. It was initially recorded in 2005. The songs on the album are "from a seven-year period, but [Interscope CEO] Jimmy Iovine heard some [tracks] and was like, 'This is great, let's put it out'. One of the album's executive producers and fellow Black Eyed Peas member will.i.am stated that she was "writing about her personal struggles and casting her demons away and feminine power. [It's] her singing for young girls to be strong, and what they're going through in life, just growing up in this world of uncertainty." "London Bridge" was released as the album's lead single on July 18, 2006, to radio stations and on August 7, 2006, on the iTunes Store. The urban pop