Congratulations to Shooter Jennings and his fiancee, actress Drea de Matteo, who welcomed their second child to the world Thursday afternoon (April 7).

"Waylon Albert 'Blackjack' Jennings has arrived folks!" Jennings tweeted Thursday afternoon, announcing his son's birth. "Thanks for all the kind words folks! We're super lucky to have so many kind friends!"

Little "Blackjack" is the third male in the Jennings family to carry on the Waylon legacy, the first of course being Shooter's father, Waylon Jennings. The late legend's son's full name is Waylon Albright "Shooter" Jennings.

Blackjack is the second child for Jennings and de Matteo, who have a 3-year-old daughter, Alabama Gypsy Rose.