I love really good pop songs, by that I am not talking about lyrics, singing ability, deep relevance in terms of zeitgeist, I mean you hear it, you sing it, you want to hear it again. It makes you happy when it comes on.
Other Contenders for me are;
Love Sex Magic- Ciara
Sweet Dreams my LA ex- Rachel Stevens
Candy- Robbie Williams
I mean they're not up there with the White Album and Rumours but they're perfect examples of the genre.