Which Beyoncé song became her first solo number-one hit in the United Kingdom?

“Crazy in Love” became Beyoncé’s first solo number-one hit in the United Kingdom.

Released in 2003 as the lead single from Dangerously in Love, the song features a prominent rap verse from Jay-Z and a horn sample derived from the Chi-Lites’ “Are You My Woman (Tell Me So).” Rich Harrison produced the track and helped create its instantly recognizable brass-driven sound.

“Crazy in Love” topped charts in the United States and the United Kingdom, making it a defining launch point for Beyoncé’s solo career after Destiny’s Child. Its music video, directed by Jake Nava, also became closely associated with the song’s choreography and visual style.

The track is sometimes confused with “Baby Boy,” which was another major single from the same album and also topped the U.S. Billboard Hot 100. In Britain, however, “Crazy in Love” was the first solo Beyoncé single to reach number one.