OK, I've heard this a few times on the radio but since it's a "Jack" style station, they don't say who the songs / artists are.

It's a female singing a take-off of the song "If I were a Rich Man" from Fiddler on the Roof, this one is "If I were a Rich Girl".

It goes something like:
If I were a rich girl
na na na na na na na na na na na na na
I'd have all the money in the world
If I were a wealthy girl

I wouldn't have to work hard
na na na na na na na na na na na na na


That's about all I remember. I was just watching TV and they had an ad for "Blazin Regae": http://www.towerrecords.com/product.aspx?pfid=3241997
and in that ad they had this song playing in the background, but even if it were on the CD, I have no idea which song.

Thanks!

Gwen Stefani, featuring Eve: "Rich Girl"

Yep, that's it, thanks!