While they normally stick to expressing themselves through attire, Mary-Kate and Ashley Olsen have taken quite the jump into experimental hair colors. Spotted yesterday in New York City, Mary-Kate and Ashley debuted their pink and yellow (respectively) tresses that served as an extension of their outfit.

While they’re usually ahead of the pack in the fashion world, the unnatural hair coloring was a growing trend seen among celebrities like Kelly Osbourne (gray/lavender) and more recently, Rihanna (bright red).

What do you think of the Olsen twins’ new ‘dos?