Wiz Khalifa & Amber Rose Welcome Baby Boy

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Wiz Khalifa and a very pregnant Amber Rose attend the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles -- Getty Images
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Wiz Khalifa and a very pregnant Amber Rose attend the 55th Annual GRAMMY Awards at STAPLES Center on …

Wiz Khalifa and Amber Rose are officially parents!

The rapper and his model fiancée welcomed a baby boy on Thursday.

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"Happy Birthday Sebastian 'The Bash' Taylor Thomaz!!! Everyone welcome this perfect young man into the world," the proud new dad (real name Cameron Thomaz) announced via Twitter.

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Sebastian is the first child for Wiz, 25, and Amber, 29.

Celebrity friends of the couple took to Twitter to congratulate the pair on the new bundle of joy.

"Mazel tov on your new bundle of joy," Larry King wrote, while music mogul Russell Simmons Tweeted, "Congratulations Wiz & Amber."

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Amber (former flame of Kanye West), became engaged to Wiz in March 2012, and confirmed her pregnancy at the 2012 MTV Video Music Awards in September.

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-- Erin O'Sullivan

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