The latest catwalk and celebrity hair colour trend takes its inspiration from a popular childhood toy and tv show from the 1980s and 1990s.
The look which features rainbow coloured strands is said to have originated partly from the vivid hair colours seen in the My Little Pony toys.
Other inspirations behind the rainbow hair dying trend are said to be the 80s and 90s punk scene. According to several high profile hair stylists the mixture of nostalgia and the rebellious nature of the look is what is behind driving its popularity, especially with younger women who now find the dip dye look which has been popular over the past few years too mainstream.
The look certainly has an extreme edge and won't be to everyone's taste but it has already been seen on major fashion show runways including the Louis Vuitton 2015 Autumn / Winter show.
The look has also captured the imagination of several stylish celebrities. Georgia May Jagger, Britney Spears and Katy Perry have all gone for the rainbow colour this year.
Model Chloe Norgaard who has pioneered the look from the start believes the style has helped her break out of the conventional model appearance, feel happier and get more interesting work.
While the extreme colour was a signature of the punk era, the difference in today's trend is the cut it is paired with. Short, sharp and extreme cuts were all signatures of the punk movement but for 2015 the extreme colours are paired with softer and longer hair styles. This approach delivers a more feminine and delicate look.
The trend is a further evolution in a natural progression in more extreme and playful hair colours that has been taking place over the past few years. First there was ombre, dip-dye, and multicoloured balayage. Bronde has been yet another recent mainstream hair colour style that plays with multiple shades, but just how many women are brave enough to go for the rainbow style remains to be seen.