Britney...Meet Doc Brown!

It's pretty much a foregone conclusion that ol' Brit Brit doesn't look quite as sexy as she did back in her "Slave 4 U" days anymore. But if she really put her mind to it, worked out, gave up her sugary Red Bulls and frapps and ate a well-balanced meal for a change - oh, and sorry Britney, "Cheetos" isn't a food group - she could get back in fighting shape pretty quick. If she keeps going the way she is, the picture above shows what the singer may very well look like on her 46th birthday. It's not looking any better for her at 36 (brunette hair) either. The photos were manipulated by sophisticated computer techniques similar to the ones used to help the FBI determine how time may have changed the appearance of fugitives and missing persons. Take heed, Miss Britney, you've still got time! These renderings were developed by ageprogression.org.