Jessica Simpson gives birth to son

Nov. 29, 2011: In this file photo, singer Jessica Simpson, right, poses with Eric Johnson at the 25th Annual Footwear News Achievement Awards at The Museum of Modern Art in New York. (AP)

NEW YORK – Jessica Simpson's daughter has a new playmate -- a baby brother named Ace.

Simpson's rep confirmed that the entertainer gave birth to Ace Knute in Los Angeles on Sunday via planned C-section. The details were first reported by Us Weekly.

This is the second child for Simpson and her fiance, Eric Johnson. Simpson gave birth to daughter Maxwell last year.

Simpson, who got her start as a singer and has a successful apparel and accessories line, most recently appeared on NBC's "Fashion Star."