Superstar Singers and Their Siblings

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Happy birthday to Lady Gaga! We celebrate her birthday on March 28, and no doubt she'll have a plethora of good wishes around the world. But we wanted to take some time to spotlight the people who sometimes (not always) get left behind--the siblings! From living a normal life to carving their own careers, check out what the brothers and sisters of some of music's biggest stars are up to! -- by Tiffany Lee

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