It's a girl for R&B superstar Ne-Yo and his actress girlfriend Monyetta Shaw!

The "Beautiful Monster" singer welcomed his first child Friday night -- nearly six weeks earlier than expected.

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"She's healthy and happy. Feels like I'm in luv for the first time," Ne-Yo, 31, tweeted Saturday. "Welcoming that lil' girl to the world last night defined for me what 'willing to kill and die for' truly means. My world, my life, all hers."

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The singer was reportedly at a charity event for his Ne-Yo Foundation when he got the call that Shaw went into labor, All Hip Hop News reports. The Grammy nominated singer then rushed to the hospital in Atlanta to be by her side for the birth.

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