When American Idol's Jordin Sparks guest-starred on a special episode of Nick's hit preschool show Team Umizoomi, we shot a custom music video featuring her recording the episode's signature song. But it wasn't just Jordin Sparks in the studio - she had some help from the mini math superheroes themselves.
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Milli is only female leader of Team Umizoomi and older sister to Geo. She is the main...