Heeeere's Johnny's -- Former House

7/10/2006 12:12 PM PDT

Heeeere's Johnny's -- Former House

Johnny Carson's Malibu estate can be yours -- for a cool $42 million.

This advertisement (click here to see photos), inside "Los Angeles Times Ultimate Address" magazine, does not list the owner, but TMZ has learned it's the lavish estate the former "Tonight Show" host called home. It's an ultra-modern home, with extras including a guest house, guard house, tennis court, tennis pavilion and "exquisite park-like grounds."

Carson's widow, Alexis, has listed the house with the tony Sotheby's International Realty.

Real estate sources say Alexis has moved out of the house and that it was empty until recently, when rented furniture was brought in to make it look homey -- called "staging" in real estate terms.