I don't think I can rank them b/c there are so many in the list I don't care for. I'll just rate them, that will be easier for me.
Lady Gaga 2/10
Beyoncé 5/10
Britney Spears 7/10
Jennifer Lopez 5/10
P!nk 10/10
Avril Lavigne 7/10
Rihanna 0/10
Katy Perry 0/10
Ke$ha -100/10
Taylor Swift -10000/10