Lindsay Lohan has a new little half-brother!
Weighing in at 7 lbs 5 oz, Landon Major Lohan arrived at 2:39 p.m. in a Florida hospital.
Sources tell RadarOnline.com both parents are ecstatic about the arrival of little Landon and they look forward to raising him together.
Michael has four children with ex Dina Lohan and after a recent paternity test it was proven he had 17-year-old Ashley Horn with Montana massage therapist Kristy Horn -- and now he has a son with Kate.
Landon is Kate's first child.