As the sports saying goes, Father Time is undefeated. Everybody ages eventually, even Hollywood's rich and famous and attention-seeking reality TV stars.

Not all celebrities are created equal, however. 35 in Hollywood is not the same as 35 in McIntyre, Ga., as the side-by-side photo comparison below illustrates.

Posted in: Kate Upton

If one thing's for sure after looking through this slideshow it's that Joan Rivers' plastic surgeon needs to start handing out his business card on the red carpet. 

Or we could just let people age like they're supposed to so they don't end up looking like Joan Rivers one day. Yeah, there's that option.

Posted in: Joan Rivers