The most popular two words to rhyme in modern pop music history might be "do" and "you"

[youtube http://www.youtube.com/watch?v=C-u5WLJ9Yk4&w=600&h=315]

This is fairly cool: if you analyze the Billboard Hot 100 at the end of every year from 1960 to 2013, and look for what words the artists attempted to rhyme together (and only take one example per song, to avoid repetitive choruses), it seems the most popular rhyme pair in modern pop music …