Kelsey Grammer's estranged wife thinks it's "crazy" the actor is planning to get married next month.

Camille Grammer - the mother of two of the former 'Frasier' star's children, Mason, nine, and six-year-old Jude - is shocked at his decision to tie the knot with fiancee Kayte Walsh in February as she is not ready to move on.

She told US TV talk show host George Lopez: "It's crazy, crazy. I don't want to get married again, I need time. And no I'm not dating anybody."

Kelsey - who has already been divorced twice - recently revealed he plans to marry former air hostess Kayte next month even though his divorce from Camille is yet to be finalised.

Speaking about his relationship with Kayte, Kelsey said: "The kids seem to be doing OK. We've been spending quite a bit of time with them, Kayte and I. Kayte's my new girl, and we're planning to get married soon. Sometime in February."

However, Kelsey's plans were put in jeopardy as Camille had asked a judge to deny the 55-year-old star's motion to dissolve their marital status while they continue to fight over their $120 million estate.

The former Playboy model claimed Kelsey is only requesting the quick divorce "solely for the reason that he intends to remarry as soon as possible".

Last month, Camille - who split from Kelsey last July after 14 years of marriage - reportedly rejected a $30 million divorce settlement as it didn't include alimony or child support for their two kids.

Following his split from Camille, Kelsey started dating 29-year-old Kayte but in October, tragedy struck as she miscarried their first child together.