Katy Perry's brother, Madonna's son David and more are having the coolest night ever thanks to their famous family members
Credit: Larry Busacca/WireImage
Updated: Sunday Jan 26, 2014 | 08:00 PM EST
By: Laura Lane
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Nothing calms the nerves like having mom with you! Musgraves (nominated for a whopping four Grammys and winner of two) brings her artist mama Karen with her to the show, where she also performed her single "Follow Your Arrow."
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