Wiz Khalifa and Amber Rose Welcome a Son

LOS ANGELES, CA - FEBRUARY 10: Amber Rose andWiz Khalifa arrives at the The 55th Annual GRAMMY Awards on February 10, 2013 in Los Angeles, California. (Photo by Steve Granitz/WireImage)         

The rapper announced today that he and his fiancee have welcomed their first child, Sebastian Taylor Thomaz

Rapper Wiz Khalifa announced today that he and his fiancee Amber Rose have welcomed a son, Sebastian Taylor Thomaz.

Two hours after tweeting a photo of himself in scrubs with the caption "Daddy time," the 25-year-old Khalifa broke the news himself:

The good news has notched over 34,000 retweets. Not long after, Rose, 29, issued her first tweet as a new mom:

The baby is the first for the couple, arriving three days before his Feb. 24 due date. Khalifa and Rose confirmed the pregnancy on the MTV Video Music Awards red carpet back in September. Their last public appearance came at the Grammys on Feb. 10.

Baby Sebastian arrives nearly a year after his parents' engagement, which the couple announced on March 1, 2012.