Amber Rose and Wiz Khalifa welcomed baby boy Sebastian Taylor Thomas on Thursday, Feb. 21. The proud parents announced the birth of their first child on Twitter. Khalifa tweeted: "Happy Birthday Sebastian "The Bash" Taylor Thomaz!!! Everyone welcome this perfect young man into the world."

Rose hinted that her baby is on the way when posted a photo on Instagram on Feb. 19 of a fetal monitor with the caption, "coming soon."

Yesterday, she updated her followers on Twitter: "Good morning Rosebuds & Rosestuds Muva is not in labor nor did I have the baby yet I just had a doc appt yesterday Lol that's all. I got a million congratulation texts yesterday for having the baby... It was sweet but our Chicken nugget is still baking."

Amber Rose, Wiz Khalifa First Baby Photo of Sebastian [PICS]

The engaged couple first announced that they were expecting at the MTV Music Awards in September 2012.

There was much speculation that the baby would be a boy when registry listings at Los Angeles baby boutiques Petit Tresor and Bel Bambini were reported by Celebuzz.

The couple reportedly bought plenty of blue and male-centric items to indicate their baby will be a boy.

Khalifa and Rose had requested that their family and friends get them a Crown Prince Built-to-Grow Crib priced at $3580, as well as blue bibs, pacifiers, and bottles.

Rose had tweeted on Oct. 5 that she had already picked a name for her son. "Cam & I finally picked a name for the baby yesterday! U guys are gonna love it! It's the cutest freakin name ever! :-)"

During a MTV Music Awards' red carpet interview with host Sway, Khalifa confessed that he wanted a baby boy.

He admitted that he wants to "teach him how to rap and be a real good MC."