Amber Rose Baby Pictures Surface (PHOTO)

Wiz Khalifa and Amber Rose have officially welcomed their first child into the world!

On Thursday, Feb. 21, the hip hop artist and model took to Twitter to announce that their son Sebastian aka "The Bash" was born.

"Happy Birthday Sebastian 'The Bash' Taylor Thomaz!!! Everyone welcome this perfect young man into the world," the rapper tweeted.

"Happy Birthday to our baby boy Sebastian "The Bash" Taylor Thomaz! I'm so happy u guys I fell in love all over again! :-)" tweeted the new mother.

Amber also posted the first photo of her little boy being held by her fiance with the caption, "Best daddy ever.... Up with the baby so Muva [Rose's nickname] can go back to sleep :-)."

Fellow musicians Rihanna and Snoop Dogg offered their congratulations to the new parents via Twitter.

"Congratulations to my fam @mistercap and @muvarosebud !!! Welcome baby Bash! You're born in an exquisite month #babypisces," posted the "Diamonds" singer along with a picture of her and Rose at the Grammy's earlier this month on Instagram.

"Welcome 2 fatherhood mistercap!!! Congrats 2 u n @darealamberrose on ur new son," Snoop Dogg said on Instagram.

In December, the hip hop star told E! News that he does not plan to kick his marijuana habit, but he will curb the habit around his newborn.

"I think it's all about how you're raised with it," said the rapper. "Before, there was a much more negative outtake on it. You know, pot and what it can do, and the effects of it. "Of course I'm not going to be smoking right there over the baby, because smoke in general and being high is not good for a kid. None of that," added Khalifia. "But definitely he's going to know what it is - and he'll know the difference between being a child and not being able to use it and being an adult and knowing how to use it."