Celebrity Parents Melissa Joan Hart at the farmer's market By Staff Author Published on March 9, 2008 09:41 PM Share Tweet Pin Email An overdue Melissa Joan Hart, 31, was snapped at the farmer's market in Studio City, CA, on Sunday. She and husband, rocker Mark Wilkerson, 30, expect their second child any day now, joining son Mason Walter, 2. Melissa has written a journal exclusively for CBB readers throughout this pregnancy. Photo by PacificCoastNewsOnline.com. Melissa carries an OYikes! 24/7 slingback in frosted titanium ($80).