Hugh Hefner's wedding to playmate Crystal Harris is set to be an extravagant affair with over 300 guests in attendance.

And whilst invites are yet to be sent out, it's a sure bet that former flame Holly Madison hasn't made the guest list.

"I think Holly has expressed publicly that it would be a little strange if she was there and I respect that," the Playboy mogul told US magazine People at his 85th birthday bash.

The two girls have been involved in a public feud this year.

Holly split with Hugh in 2008 due to his reluctance to get married, and she expressed her anger when the 85-year-old proposed to Crystal after two years together.

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