What was the name of Beyoncé’s first solo number-one single in the United Kingdom?

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

Released in 2003, “Crazy in Love” was the lead single from Dangerously in Love and featured rapper Jay-Z. The track was built around a prominent brass sample from the Chi-Lites’ 1970 song “Are You My Woman (Tell Me So),” giving it an immediately recognizable, celebratory sound.

The single reached number one in the United Kingdom and the United States, establishing Beyoncé as a major solo recording artist beyond Destiny’s Child. Its music video, directed by Jake Nava, also became closely associated with the song’s choreography and fashion imagery.

“Crazy in Love” is sometimes confused with “Baby Boy,” another Dangerously in Love single that also topped the US Billboard Hot 100. In the UK, “Crazy in Love” began a long series of solo chart successes for Beyoncé.