Donald Trump Jr. welcomes baby number four with wife Vanessa

The Trump family now has a new apprentice. Donald Trump Jr. and his wife Vanessa are the proud parents of newborn son Spencer Frederick Trump, the couple confirms to People.

Born on Sunday (Oct. 21), the littlest Trump weighs in at 7 lbs. and 15 oz. His middle name, Frederick, is in honor of "The Celebrity Apprentice" host Donald Trump Sr.'s father.

"I'm thrilled," Trump, 34, says. "The baby is healthy and beautiful."

This is the fourth child for the Trumps. Baby Spencer joins Kai Madison, 5, Donnie John Hill, 3 1/2 and Tristan Milos, 1.