Does Katy Perry’s outfit look familiar?

Katy Perry's outfit was inspired by nostalgia and her tumblr addiciton.

Katy Perry and Riff Raff walked the red carpet at last night's MTV’s video music awards head to toe in versace denim and we couldn’t help but think we’ve seen this outfit before?

*Flashback to VMAs 2001*

Of course how could we forget Britney and Justin’s denim duo outfit in 2001?

Katy revealed her outfit is a result of her love for nostalgia and went on to tweet Britney asking if she liked her impersonation?

I must admit my outfit is a result of my love for nostalgia and my tumblr addiction #THISISHOWWEDOVMAS

— KATY PERRY (@katyperry) August 24, 2014

. @britneyspears I did my best impression, hope u likey!

— KATY PERRY (@katyperry) August 25, 2014

And Britney graciously replied:

.@katyperry Just when I thought the denim dress had retired....you bring it back! You looked amazing tonight bb ;)

— Britney Spears 🌹🚀 (@britneyspears) August 25, 2014

But we all know where Brit Brit and Justin got their style inspiration back in 1998 …

B*Witched rocked that full denim look!