Jessica Simpson and fiance Eric Johnson have welcomed their second child. It's a brother for Maxwell, Simpson's older child. The baby boy is named Ace Knute Johnson.

Ace was born today (6/30) via C-section in Los Angeles.

A Simpson rep told US Weekly:

Ace Knute (pronounced 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.