Jill Scott and her fiance Lil John Roberts welcomed their first child together on Monday! The R & B singer gave birth to a little boy they named Jett Hamilton Roberts. He weighed in at 7 lbs., 8 oz.

You can catch Scott on HBO’s new series The No. 1 Ladies’ Detective Agency. She first learned about her pregnancy before leaving to Botswana to film the show.

“At one point I was trying to gain weight for the role, and I noticed I had put on 7 lbs. in 7 days. And I thought, my god! What’s going on here,” she tells PEOPLE. “I thought something was wrong with me, and I found out I was pregnant the day I was supposed to leave for Africa.”

Congrats girl!!