Kelsey Grammer and his third wife are divorcing after almost 13 years of marriage, the former “Frasier” star said in a message posted on Twitter Thursday. “Hello everyone thank you for ur support and yes it's true Camille and I are divorcing. I ask U 2 respect our privacy,” Grammer's message said. Celebrity news website TMZ.com said Camille Donatacci, a former Playboy model and dancer, filed the divorce papers citing irreconcilable differences. The couple married in 1997 and have two children. Grammer, 55, has two other marriages behind him. Grammer is currently making his debut on Broadway in a revival of the musical “La Cage aux Folles” which earned him a Tony nomination for best actor. He is best known for playing egotistical therapist Frasier Crane on the TV comedy series “Frasier”, a spinoff from the character he first developed on 1980s show “Cheers.”