 American rapper Jay @-@ Z became involved late in the song 's production . Around three in the morning , he came to the studio and recorded a rap verse , which he improvised in about ten minutes . The recording of " Crazy in Love " took place nearly three months following the meeting of Beyoncé with Harrison . 
 American rapper Jay @-@ Z became involved late in the song <a href='null_genetive' title='1'><mark>'s</mark></a>production . Around three in the morning , he came to the studio and recorded a rap verse , which he improvised in about ten minutes . The recording of " Crazy in Love "<a href='been_done' title='2'><mark></mark></a> took place nearly three months following the meeting of Beyoncé with Harrison . 
American rapper Jay @-@ Z became involved late in da song  production . Around three in the mornin , he came to the studio and recorded a rap verse , which he improvised in bou ten mins . Tdarecording of " krazy in Love " done took place nearly three months following thdaeeting of Beyoncé w Harrison .