Wiz Khalifa and Amber Rose Welcome Baby Boy

Almost two weeks to the day since Amber Rose showed off a very round baby bump at the Grammys, the new mom and her hip-hop star fiancé, Wiz Khalifa, have welcomed a son.

Happy Birthday Sebastian 'The Bash' Taylor Thomaz!!! a proud Khalifa posted on Twitter Thursday. Everyone welcome this perfect young man into the world.

Rose, the former girlfriend of Kanye West, announced she was engaged to Khalifa in March of last year. She's gushed about their relationship, and so has Khalifa.

The rapper told CNN in 2011 of his romance with Rose that it's awesome to have that support and to have that base. It gives me structure, it gives me discipline and it helps me work on other stuff that's much more important. I feel like everybody has some person that's out there for them. If you tap into that and take advantage of it and hold it close and treat it like what it is, that's when you'll get -- fully -- out of it what you're supposed to.