After a fairly unmemorable red carpet fashion parade -- compared to previous years at the VMAs -- Katy Perry saved the day with her appearance just as the show was about to start, and we cannot thank her enough. She showed up with her "This Is How We Do" remix partner in crime, Riff Raff, in matching denim outfits, people. And not just any denim would do: "We're wearing custom Versace," Katy announced on MTV's VMAs pre-show with a sly smile. "[It's] a throwback to Britney and Justin." As in the best pop-music couple of all time at the height of their coupled glory -- the 1991 American Music Awards, when they wore matching denim ensembles. Why hasn't anyone done this before?! Well played, Katy, well played.