W hen Pink (or P!nk) burst into the music scene in 2000, her hair reflected the moniker she adopted. Born Alecia Moore, the pop star sported neon pink hair that stood out from singers like Britney ...

Pink still feels like an underdog, 25 years into her successful music career. She explains why she feels that way, even though she's sold $350 million in tickets around the world so far this year.