London Nov 27: Supermodel Kate Moss is planning to spice up her look by adding more colourful metallics and shimmer to her beauty regime to give her skin a festive glow. The 40-year-old has decided to undergo an image makeover in the run up to the Christmas party season adding her favourite St.Tropez products to her beauty regime to give her skin a 'radiant glow' and conceal signs of a late night reports contactmusic.com. (Read: Winter skin care tips: Keep skin hydrated moisturised) 'My beauty regime does change for Christmas parties. I wear more metallic and always a little bit