Kelsey Grammer will marry Kayte Walsh in a ceremony officiated by a drag queen.
The former 'Frasier' star - who only completed his divorce from wife of 13 years, Camille, earlier this month - and his 29-year-old fiancee will be married at the Longacre Theater on Broadway by his 'La Cage aux Folles' co-star Terry Lavell Friday.
A source told the NY Post newspaper: "They'll be married by Terry Lavell, who plays Mercedes. He has the license to officiate weddings. The congregation will sit in the audience seats.
"Kelsey wanted to get married at the Longacre because he enjoyed being on the stage. Also, it's where he fell in love with Kayte; she was always backstage."
When the ceremony is complete, the guests will then go to New York's plush Plaza Hotel for the reception.
Around 150 guests are expected at the after-party, where they will dine on a multi-course meal of andoiulle en croute, slow-roasted turkey breast with chorizo stuffing and braised short-ribs.
For the vegetarians - including Kayte - a menu of goat's cheese truffles and wild mushroom risotto will be served.
Kelsey's ex-wife Camille recently wished the couple well in their marriage and expressed her hope they could communicate better about their two children; Mason, nine and Jude, six.
She said: "I'm sad for what was, yet excited about the road ahead. I'm grateful to my family and friends who have stood by me through this time - I will never forget their love and support.
"What I most hope is that Kelsey and I can improve our communications and truly co-parent our two wonderful children; and I wish Kelsey and Kayte love and happiness in their new marriage."
