These days, it's easy to forget that Christina Aguilera is a four-time Grammy Award-winning singer who has sold over 50 million albums. The pop star is now better known for forgetting the words to the national anthem, stumbling on stage, being drunk at parties, the failure of her most recent album, the dismal reception of her feature film debut, a canceled tour, rumors of very inappropriate behavior at family functions and now an arrest for public drunkenness.