Kelsey Grammer is engaged to girlfriend Kayte Walsh, a rep for the actor confirms.

"They have been engaged for a while," his rep told TVGuide.com. "They never made a public announcement."

Kelsey Grammer's girlfriend suffers miscarriage

Walsh, 29, who suffered from a miscarriage this fall, was photographed wearing a diamond engagement ring at the Kennedy Center Honors gala over the weekend.

This will be the fourth marriage for the 55-year-old Frasier star. His third wife, Real Housewives of Beverly Hills' Camille Donatacci, filed for divorce in July after 13 years of marriage.