What do Madonna, Britney Spears, Snoop Dogg and Sylvester Stallone all have in common? No, it''''s not the newest romantic scandal in Hollywood - In recent years one line of clothing has been by worn by all these celebrities and many more. It''''s not Gucci, Louis Vuitton or Burberry, it''''s Ed Hardy clothing, the hottest new brand by French designer Christian Audigier.