Heidi Klum and Seal Are Expecting Baby

German supermodel Heidi Klum (search) announced Friday that she is expecting her second baby.

Klum, 31, said in January that she and singer Seal (search) are engaged to be married. They started dating last year, shortly after her breakup with Renault Formula One team boss Flavio Briatore (search) — the father of her daughter, Leni, born last May.

"Heidi, Seal and especially Leni, are proud to tell you that we recently found out that we are expecting our second child," a message posted on Klum's Web site said. "There is nothing that gives us greater happiness than the realization of our dream."

Klum, who has appeared in Sports Illustrated magazine's swimsuit issue, did not say when the baby is due.