Mariah Carey is priming her 14-year-old daughter to become the next nepo baby music superstar by trademarking her name.

RadarOnline.com can reveal the singer, 56, has filed paperwork to trademark Monroe Carey , covering "live musical performances" and "other entertainment information." Article continues below advertisement

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A source claimed: "Mariah has a wealth of experience in the industry and was cautious when Monroe suggested she would like to be a musician.

"But she knows it's what she wants to do, and she's fully supporting her and doing everything she can to help. Monroe doesn't want to just use her mom's little black book to make it as a singer, but her guidance has

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