Selena is selling better because she is pop, and she is PROMOTED.
Demi should get the same level of promotion as Selena, and she'll kick her butt easily.
I love them both, but obviously Demi has the talent to shy Selena.
And I'm excited to her new album, her songs on Camp Rock 2 are amazing! Different Summers, Not Too Late, Would's Change A Thing

I cannot say the same to Can't Back Down though, my emotions are mixed to that song.