A month after his wife of 13 years filed for divorce, Kelsey Grammer has been spotted out and about with a new girlfriend – a mystery blonde so far known only as Kate.

A rep for Grammer, 55, confirmed the woman's first name, as reported in the New York Post. "They are very happy together," says Grammer's publicist, Stan Rosenfield, who declined to provide more details other than that Kate "is not in the entertainment business."

Meanwhile, TMZ.com posted a video of Grammer and the woman holding hands and kissing as they took a stroll in Manhattan over the weekend.

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