Hugh Hefner Tweets Wedding Invitation

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Playboy magazine founder Hugh Hefner is preparing for his upcoming wedding to his fiancée Crystal Harris and tweeted that invitations have already gone out.  

"Friends and family are already receiving our wedding invitation," Hefner said. The invitation reads: "Crystal Harris and Hugh M. Hefner request the pleasure of your company at the celebration of their marriage."

The wedding ceremony between Hefner, 85 and Harris, 25, will take place June 18 at the Playboy Mansion.