Singer/actress Hilary Duff, 23, is expecting her first child with husband Mike Comrie, 30. Duff announced the pregnancy, which arrives on the one-year anniversary of the couple's marriage, on her official website on Sunday (Aug. 14).

"This weekend, Mike and I are celebrating our 1 year anniversary... We also want to share the exciting news that..... BABY MAKES THREE!!!" Duff wrote. "We are extremely happy and ready to start this new chapter of our lives."

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Duff wed hockey star Comrie last year in Santa Barbara, Calif. The former "Lizzie McGuire" star's latest album, "Dignity," was released in 2007