22. "Put It In A Love Song" f/ Beyoncé (2009)
Producer: Alicia Keys, Kerry "Krucial" Brothers
Album: The Element of Freedom
Here's an example of the sum being better than its parts. This song gets turned up as a result of some solid production choices...and Beyoncé. The drums make Alicia's verses into a call to arms, and those chords give that call more weight. Then there's Beyoncé being as intense as ever. On this track more than ever, both women shine as talented artists and soldiers of love.