POSH SPICE VICTORIA BECKHAM's new favourite designer has his sights on a makeover for Britney Spears. Beckham fell in love with 21-year-old Christian Siriano when she was among the panel who voted him the winner of America's most recent Project Runway reality TV series. The pop star told the wannabe designer she would wear anything he created for her, and she lived up to her word when she recently invited Siriano to her Beverly Hills home for a fitting. And after styling Posh, the young fashionista now has plans for Spears. He says, "I could save her. She needs me all day... Hair in the morning and make-up... and how about, like, cool. sexy, A-line, sophisticated type dress. Not fishnet stockings, like, torn up."