Remember when Britney Spears used to appear on stage in nude bodysuits or wearing a snake and barely anything else while dancing her butt off?

Times have certainly changed.

Pop Dust compiled shots of Spears dancing in her pre-head-shaving heyday to now -- and the results are remarkable.

While her current attempts to move on stage are nowhere near as disastrous as they were at the 2007 VMAs, it's clear that Britney has lost a step or two (or eight). Watch It: