Katy perry plays with colour in her hair

It seems Katy Perry has fallen in love with colour. Over the last couple of weeks she has stepped out with a variety of colours in her hair. From bright blue wigs to lilac hair pieces, she has travelled the world promoting her new album - and has hit the headlines thanks to her different hairstyles. Extensions will always be a celebrity's favourite accessory - and playing with colour is the perfect way to attract attention for all the right reasons.