What was the title of Beyoncé’s debut solo single as a lead artist?

Beyoncé’s debut solo single as a lead artist was “Crazy in Love,” featuring Jay-Z.

Released in 2003, the song served as the lead single from Dangerously in Love, Beyoncé’s first solo studio album. Its prominent horn sample came from “Are You My Woman (Tell Me So),” a 1970 song by the Chi-Lites. Rich Harrison produced the track and helped shape its instantly recognizable brass hook.

“Crazy in Love” reached number one in several countries, including the United States and the United Kingdom. Its music video featured Beyoncé performing highly choreographed routines, helping establish the visual confidence of her early solo era.

The song is sometimes confused with “Work It Out,” which Beyoncé recorded for the Austin Powers in Goldmember soundtrack before her debut album. “Crazy in Love” is the defining lead single of her official solo album launch.