"Crazy in Love" is a song recorded by American singer Beyoncé featuring a rap verse and ad-libs from her future husband Jay-Z from her debut solo studio album Dangerously in Love (2003).
The song was released as her official debut single and as the album's lead single on May 14, 2003, through Columbia Records and Music World Entertainment.
Both artists wrote and composed the song in collaboration with Rich Harrison and Eugene Record; the former also produced it with Beyoncé. Using samples from the Chi-Lites's 1970 song "Are You My Woman (Tell Me So)",
"Crazy in Love" is a pop love song that incorporates elements of hip hop, soul, and 1970s-style funk music. Its lyrics describe a romantic obsession that causes the protagonist to act out of character.
"Crazy in Love" was a number-one hit in the United States and United Kingdom, and reached the top ten in various other countries worldwide.
Music critics praised the hook, Jay-Z's contribution, and Beyoncé's assertive delivery of the lyrics.
VH1 declared it the greatest song of the 2000s decade, while Rolling Stone ranked it at number 16 on their list of the 500 greatest songs of all time in 2021, and in 2018, declared the song the greatest of the 21st century so far.
At the 46th Annual Grammy Awards (2004), "Crazy in Love" won Grammy Awards for Best R&B Song and Best Rap/Sung Collaboration.
The song's accompanying music video features Beyoncé in various dance sequences. It won three awards at the 2003 MTV Video Music Awards, and its director, Jake Nava, won the Music Video Production Association award for Best R&B Video in 2004.
Since 2003, "Crazy in Love" has been a staple in Beyoncé's live performances and concert tours.
The American Society of Composers, Authors and Publishers (ASCAP) recognized "Crazy in Love" as one of the most performed songs of 2004.
Artists including David Byrne have covered the song, and it has been used in various television shows and other media.