Rihanna Hakaan Spring 2011 Paris Fashion Week

Rihanna's fire engine red 'do pops up on the Spring 2011 runway at Hakaan. Photos: Christopher Polk, Getty Images | Rex USA

If imitation is the sincerest form of flattery, Rihanna should be feeling pretty darn good about herself today -- thanks to her lively "Matador Red" locks.

Model Milica Blagojevic strutted down the catwalk yesterday at the Hakaan Spring 2011 show during Paris Fashion Week donning a copycat color and cut of the pop star's bright red 'do.

The mastermind behind the vibrant hue -- which was dyed on site at the show -- is colorist Christophe Robin, who also worked his magic on Shirley Mallmann's blonde tresses, transforming them into a trendy shade of lilac gray. Whether you like these looks or not (our guess is not), they were a one-hit wonder -- Robin re-dyed the models' locks back to their original colors after the show.

Will Rihanna inspire more extreme runway looks?

Based on her past hairstyles of stripy highlights, an edgy crop, slicked back strands, and even a mohawk, we know this 22-year-old will keep pushing the hair envelope. So we won't be surprised if there are more impersonations to come.

Let's just hope the fashion world decides not to copy Lady Gaga's recent "dress!"