There’s no surefire trick to achieving a long-lasting relationship, but recording the top-selling urban record of all time together certainly doesn’t seem to hurt; 10 years down the line, Beyoncé and Jay Z are still Crazy in Love. Considering the historic sales numbers her debut solo single (part of 2003’s Dangerously in Love LP) racked up, it’s surprising to note that Knowles had her doubts about the song. She deemed the “blaring fanfare” of Rich Harrison‘s beat, sampled from The Chi-Lites’ Are You My Woman? (Tell Me So), too retro for early-‘00s audiences. And that wasn’t the only strike against it. Harrison penned the lyrics in two hours while suffering from a hangover, and Hova improvised his verse in about ten minutes. The creative process behind the cut may have been unorthodox, but it worked, scoring Beyoncé her first number one single on the Hot 100 and burning up the airwaves internationally to boot. Director Jake Nava‘s official visuals, featuring a car blowing up beneath an overpass, provide an apt visual metaphor for the record’s explosive impact on the game.