18. ''Crazy in Love''
Beyoncé (2003)
With a killer Chi-Lites horn sample and an irresistibly percussive beat, Ms. Knowles uh-oh uh-oh uh-oh-oh-nonos her way into our hearts. Call us loco, but it's the most joyful four minutes of summer lovin' in recent memory. Props go to her boyfriend, Jay-Z, who lays down a blazing rap interlude in the middle. And especially that impressive, tireless set of pipes: Once our girl B. gets to those Woah-oh's at the end, it approaches pure ecstasy.
