Yes, we have started singing a song to ourselves in public without realizing it. And yes, we’ve gotten some crazy looks from people. Not because our singing is great, but because they’d like us to ...

Grammy-winning pop star and actress Christina Aguilera, best known for her songs "Genie in a Bottle," "Beautiful," "Dirrty" and "Say Something," turns 44 on Wednesday. Here's a look back at her career ...