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Wiz Khalifa and Amber Rose are officially proud parents. 

On Thursday the couple welcomed their first son into the world - Sebastian Taylor Thomaz.  The rapper to took Twitter to make the announcement and wished his baby boy a happy birthday. 

He also asked fans to "welcome this perfect young man into the world."  It turns out the couple has already given baby Sebastian a nickname - "The Bash." 

Although Rose had a due date of February 24th, rumors of the birth began to swirl on Thursday after Wiz posted a picture of himself dressed in hospital scrubs with the caption "Daddy time."  

Click here to see the picture

Photo Getty Images