So who is missing then?
Jessica Simpson - I would have expected her on this list since her career is 90% enodr$ements. But she hasnt had much of a music career so that pretty much explains it.
Fergie - Probably because "The Dutchess" is her breakout album. I would expect her to be high on this list within the next two years.
Hillary Duff - Apparently.
Rihanna - This shows how selling downloads doesnt mean the big bucks. She ahsnt really been chasing advertising deals, but I would expect her to do that in between albums.
Also: Cher - doesnt she still tour??