Jay-Z is credited as Beyoncé’s collaborator on the 2003 hit “Crazy in Love.”
The song was released as the lead single from Beyoncé’s debut solo album, Dangerously in Love. Beyoncé sings the main vocal, while Jay-Z contributes a rap verse. Rich Harrison produced and co-wrote the track, which prominently uses a sampled horn riff from the Chi-Lites’ 1970 song “Are You My Woman (Tell Me So).”
“Crazy in Love” became one of Beyoncé’s signature songs and topped charts in the United States and the United Kingdom. Its energetic horn arrangement, repeated vocal hook, and dance-focused video helped establish her solo sound after Destiny’s Child.
Jay-Z and Beyoncé later married in 2008 and continued collaborating on recordings, including the joint album Everything Is Love. The answer is Jay-Z, not the producer Rich Harrison or the sampled song’s performers.