Avril Lavigne did not sell a lot of records in her recent album but her single Girlfriend got 100 K on youtube and it was played everywhere all the time and still.
From the other side we have a new Brand song of Britney Spears, she is less sexual and has returned to basics. She just got Womanizer.
Wow, this is a though desition to make. If I go for the lyrics I would chose Girlfriend but love the no sense song of Britney!