What is the name of the song that starts by going na na na na na na.

Here's one... don't think it's the one you are talking about (I am still searching though, lol... now you have my brain working overtime to try to remember the name of that song)

YouTube - Steam - Na Na Hey Hey Kiss Them Goodbye

Kaiser chiefs -na na na na na... maybe

YouTube - Kaiser Chiefs - 'Na Na Na Na Naa'

Hehe... not the one I was thinking of either, but kind of catchy :)

This one might be it...
Kaiser chiefs -na na na na na
Hope this helps! You can listen to it on YouTube.

Centerfold maybe?
Try this link
YouTube - J. Geils Band - Centerfold