Kimora Lee Simmons' publicist says the model and "Kimora: Life in the Fab Lane" reality show star has given birth to a son in Los Angeles.
The newborn's name had not yet been publicly announced.
"Kimora and Djimon are the proud parents of a new baby boy. Both mother and child are doing great," Simmons' representative told TV's "Access Hollywood."
Simmons also has two daughters with her ex-husband.