By Leah Ornstein - Radar Style & Beauty Editor
From the red carpet to the streets, stars were out and about this 4th of July holiday weekend, dressed to rock and shock in the best, worst & wackiest fashions and RadarOnline.com has all the photos.
The Duchess of Cambridge (formally known as Kate Middleton) rocked classy couture all over Canada this weekend, but her best look of all was the Alexander McQueen cable knit sweater dress she paired with Prada heels for a ceremony at Province House.
Kelly Osbourne was overly studded at the Wireless Festival in London, where Ke$ha upped the wacky factor, walking around in a crazy costume.
Kate Moss was a beautiful bride, wearing a gown designed by John Galliano, while Naomi Campbell hit the Monaco Royal Wedding in Alexander McQueen.
What other stars were dressed to rock and shock this weekend? Click here to find out.