Robertson Boulevard just got a major dose of funky with the opening of OnePiece (116 Robertson Blvd. 310-550-7753), a Norwegian label that designs adult onesies in all sorts of prints and colors. There are seven other stores worldwide, this one being the first US flagship. At the grand opening bash, you better believe some guests arrived sporting their OnePieces in pink, purple, and red, white, and blue like the one Justin Bieber has. Each OnePiece is about $200, and while the store is located in a hot retail spot — across the street from The Ivy — we have yet to see if the trend will take off in LA. Click through for snaps of the store and party, then stop by to see if a OnePiece is right for your wardrobe.