Who is Janelle Monae?
I don't like this rule at all. So she was nominated last year. Who cares? Nobody really knew her back then. (At least in the U.S.) She became really popular in 2009, not 2008.
Ke$ha will be eligible, but I doubt those dumb asses who nominate people won't even give her a nomination. They always give awards to music that is deep or contemporary, and screw what actually is popular.