Celebrity Siblings

Britney and Jamie-Lynn Spears

"Criminal" singer Britney first danced on stage at age 3 and won loads of pageant trophies, which are now housed in a museum in Kentwood, La. "I found out what I'm supposed to do at an early age," Britney has said. Her younger sister—aunt to Britney's boys Sean and Jayden and mom to daughter Maddie—followed years later with her own country singing career, even debuting a song for Britney called "I Look Up to You" in 2012.

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