Born: Dec. 2, 1981

Arguably the most famous pop star of her generation, Britney Spears is the poster child for Sagittarius' dynamism. From her early days as a Mouseketeer to the multiplatinum albums and number-one singles she scored before she was even 21, Spears wowed the world with her unique combination of youthful exuberance and unstoppable talent. The mother of Sean, 3, and Jayden, 2, may have hit some serious roadblocks over the last few years, but with renewed chart success thanks to hits like "Womanizer" as well as new love with Jason Trawick, it looks like she's "done it again."

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