Unlike a rainbow ombre look with colours blended together, the viral trend involves bleaching the hair horizontally or vertically to create a shine line.
The trend is a twist on the 2014 hair trend, Splashlights, which involved a horizontal band of bleached hair going from ear to ear to create the illusion of a laser beam hitting a certain spot on the hair.
Shine line too has the laser beam feel, but with a beautiful rainbow effect. Usually the roots and the hair ends are kept the same colour to lock in the prism and emphasize the colour beam.
So ditch your monotone hair colour this season, and embrace the rainbow.