In line with the Candyland colors we saw from Karl and Marc for Spring, My Little Pony hair just made an appearance on a pedestal of trendsetting: an Olsen twin (Ashley).{Style.com}

Ashley (L) Olsen's Pastel Streak

Nylon's Rainbow Locks
As well, Nylon featured the look in a recent editorial (behind the scenes video here) but it’s Jack and Lazaro who get firsts on this look; they showed the pastel tresses in September.

Proenza Schouler
This over-the-rainbow look’s best for blondes but still a can-do for brunettes. Will pastel pink and purple top your trends-to-try for tresses, or is it too preschool to be cool?