
We don't know who owns these mansions though most appear to be located in Hollywood Hills -- where the homes of Lindsay Lohan, Paris Hilton, Orlando Bloom and other celebs were hit.
Go through the gallery. Any of these look familiar?

The one on the right(the house with the flat roof and solar panels and red truck in the drive) in the opening photo is that dead guy who used to be the Johny Carsons Side Kick. You know ed McMahan.
So it looks like these guys were going to branch out and hit the eldery celebrity set.
Britney Spears might miss a lot more 'X Factor' auditions ... because she can! Simon Cowell gave Brit damn near free reign in order to sign the pop star to that $15 million deal -- but is it backfiring? We'll tell you what peeps on the set are saying.Plus, Chris Jericho's…