It's official: neon hair is back!

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Rihanna has dyed her hair nearly every “natural” shade from blonde to black, but recently changed up her look with a neon red hue.-

During my teen years I loved Manic Panic. From pink to plum to bright red, I tried many shades, and even experimented with blue dye on my younger brother (he was the coolest kid in 3rd grade). After spotting a neon Manic Panic display in the fashionably trendy Opening Ceremony boutique in New York City this week, it dawned on me: neon hair is back!

Months ago, Lady Gaga was wore a Big Bird-yellow wig to the Grammy Awards that turned heads. Since then, Rihanna, Katy Perry, and Kelly Osbourne, have all donned colorful new looks. And just yesterday, Mary-Kate and Ashley Olsen were spotted with bright yellow and reddish-pink hair. Is bold hair dye making a resurgence? If the Fall 2010 runways are any indication, the answer is yes. Both Vena Cava and Cynthia Rowley showed bold, bright streaks of color on their runway models. But dyeing your hair doesn't have to be a permanent change: Streekers rinse out with just one wash. Kate Moss probably used something similar when she dyed her hair an incomprehensible shade of grey this past winter.

So without further ado, take a look at all the celebs and models who are currently rocking wildly colorful locks. Personally, my future is looking rosy.