Jessica Simpson gave birth to a bouncing baby boy Sunday, via C-section, the singer-actress' rep confirmed in a statement:

"Ace Knute (Ka-nute) Johnson has arrived! Mom and baby are doing great. Jessica, Eric and Maxwell are thrilled to welcome the new addition to their family."

Simpson, 32, and Johnson, 33, already have a daughter, Maxwell, who's 14 months old. The singer fell pregnant with her second child only seven months after their daughter's birth.

In fact, the couple has now postponed their wedding twice, due to the back-to-back pregnancies. Her second round of nine months even coincided with a Weight Watchers deal she signed after delivering Maxwell. As soon as she started slimming gown in the gym with trainer Harley Pasternak, she learned she was with child again!