Heidi Klum and Seal have become the proud parents of a baby boy.The supermodel gave birth to her third child - Johan Riley Fyodor Taiwo Samuel - on Wednesday at 5:01 pm in Los Angeles.The baby weighed a healthy 8 lb. 11 oz. Seal wrote on Klum's website: "To our children, a brother. To our parents, a grandson. To my wife and I, a son. To our family, a blessing."He is healthy, beautiful and looks just like his mother."Klum, 33, and Seal, 43, already have a one-year-old son, Henry Guenther Ademola Dashtu Samuel. The catwalk queen also has a two-year-old daughter, Leni, from a previous relationship with Formula One racing team boss Flavio Briatore. Seal and Klum began dating in February 2004, while Klum was pregnant with Leni, and married in May 2005 on a beach near the singer's home in Mexico. Seal admitted last year that his family is the most important thing in his life.He said: "We try to spend as much time as possible together. There are days we never get out of our pyjamas. We play with the kids in bed, watch TV,cook, hang out."