Mark Wilkerson and Melissa Joan Hart.
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"I'm thrilled to death," says the star's mother, Paula Hart. "I'm so excited. Melissa is feeling great. So far, so good."
The 29-year-old actress is three months pregnant; the baby is due in January. This will be the couple's first child.
Hart and Wilkerson, the 28-year-old lead singer and guitarist for the hard-rock trio Course of Nature, met at a Kentucky Derby party in Louisville, Ky., in May, 2002. They were married on July 19, 2003, in Florence, Italy.
