Leave it to the always-bubbly Katy Perry to coordinate her dress to her blue 'do. During an LA appearance to promote her new line of false lashes, the singer rocked an aqua-and-blue colorblock frock from Roland Mouret's Spring 2012 collection that's part retro, part ladylike, and all scrumptious. If you adore this look but don't really have a fancy occasion coming up, you're in luck because we found this Aqua v-neck colorblock dress ($78) that gives off the same vibe but in a more everyday, approachable cut. All you need to do to make it more Katy Perry is throw on a bow belt, chunky platform sandals (hers are Guiseppe Zanotti), retro shades, and a Solange Azagury-Partridge hot lips ring like the one she accessorized with. Blue hairstyle is totally optional. To get the entire look, see the widget below for how we would style it.