Is Christina Aguilera the only pop singer that has any talent?

Honestly, I don't understand how Britney Spears, Rhianna, Miley Cyrus, along with many other bubble-gum pop crap singers got so famous, but I gotta give it to Christina Aguilera. She has an excellent voice. She should get away from pop and sing something more meaningful. And plus, she's hot. Do you agree?