Beyoncé Giselle Knowles

In March 2004, Knowles joined Alicia Keys, Missy Elliott and Tamia for the Verizon Ladies First Tour in North America. Knowles had originally planned to release a follow-up to Dangerously in Love in March 2004, which would feature some of the left-over recordings from the album. However, Knowles decided to put the album on hold in order to concentrate on the next Destiny's Child album. After a three-year journey that involved concentration on individual solo projects, Knowles rejoined Rowland and Williams to release their fourth and final album Destiny Fulfilled in November 2004. The album peaked at number two on the Billboard 200 chart. It was certified three times platinum by the RIAA. Destiny Fulfilled has sold over 3.1 million copies in the United States. The album spawned the hit singles "Lose My Breath", "Soldier" and "Cater 2 U". In April 2005, Destiny's Child embarked on their Destiny Fulfilled ... And Lovin' It tour, which ended in September of that year. During the last stop of their European leg of the tour in Barcelona, Spain, Rowland announced that Destiny's Child would disband following the North American leg of the tour.
A compilation album titled Number 1's, featuring the group's number-one hits and most well-known songs, was released in October 2005. The album debuted at number one on the Billboard 200 and was certified platinum by the RIAA. Knowles' single "Check on It", featuring rapper Slim Thug, was released from the album in December 2005. The song spent five consecutive weeks at number one on the Billboard Hot 100, and became Knowles' third Hot 100 number-one as a solo artist and Slim Thug's first Hot 100 single. In March 2006, Destiny's Child reunited to accept a star on the Hollywood Walk of Fame.
• 2006–07: B'Day and films
In February 2006, Knowles starred opposite Steve Martin in the comedy film The Pink Panther, as international pop star Xania. Knowles released her second studio album B'Day in September 2006; it debuted at number one on the Billboard 200, selling 541,000 copies in its first week. It gained Knowles her largest first-week sales of her solo career and became her second consecutive number one album. It was certified three times platinum by the RIAA. The album has sold over 3.2 million copies in the United States. The album's lead single, "Déjà Vu", featuring Jay-Z, peaked at number four on the Billboard Hot 100 and topped the Hot R&B/Hip-Hop Songs chart. "Ring the Alarm" was released as the album's second US single, while "Irreplaceable" served as the second international single and later as the third US single. "Irreplaceable" spent ten consecutive weeks at number one on the Billboard Hot 100, and became Knowles' fourth number-one single as solo artist.