Jay-Z co-wrote “Crazy in Love” and appears on Beyoncé’s 2003 hit as a rapper.
The song was released as the lead single from Dangerously in Love in May 2003. Its writers include Beyoncé, Jay-Z, Rich Harrison, and Eugene Record. Harrison built the production around a prominent horn sample from the Chi-Lites’ 1970 song “Are You My Woman (Tell Me So).”
Jay-Z contributes a rap verse near the beginning of the track, while Beyoncé delivers the central vocal performance. The song’s urgent brass arrangement and call-and-response structure helped define the sound of her solo debut.
“Crazy in Love” reached number one on the Billboard Hot 100 and won two Grammy Awards in 2004. Beyoncé and Jay-Z later married in 2008, but their personal relationship is separate from the song’s documented songwriting and recording credits.