11 Celebrity Summer Hair Transformations for 2014 ...

The natural blonde sported a serious celebrity summer hair transformation this July when she tweeted a picture of herself with bleached-out hair. Lauren's hair has always been something to envy, with her natural (and salon) highlights and soft, beachy color, so this Marilyn Monroe-esque color was definitely unexpected.

Vanessa has worn her signature long, dark, and wavy style for several years, but seriously switched things up lately with an ombre short 'do. This look has been especially popular this summer, especially when done up with messy, textured waves.

OK, it's clear that I become a huge fan girl over Chrissy, but I think that this obsession is even further warranted with her new summer style. The supermodel recently debuted a short long bob (or "lob") with beautiful caramel highlights and tousled waves.

The beautiful actress who starred as the unforgettable blonde bombshell in The Wolf of Wall Street dyed her hair dark brown not long after the movie debuted, but this summer she's been rocking a reddish strawberry blonde color for her upcoming film, Tarzan.

The star of The Mindy Project debuted a new, short, asymmetrical bob for summer. The cut looks absolutely stunning on Mindy, and is definitely a "hot" choice for those warm summer months!

Duff has been seen also sporting the popular "rocker chick" lob with messy waves, and we've gotta say, it really suits her well. The actress has definitely been looking like one hot mama.

The Big Bang Theory star got a shaggy, highlighted short 'do for the summer, and it looks absolutely fabulous on her. Cuoco's stylist left the front a bit longer for more of a bob-meets-pixie look.

The singer and actor is definitely far removed from her "Camp Rock" and Disney days, with her much edgier vibe and style. Demi recently rocked the side-shaved hair look, but took it even a step further by getting a purple-to-silver ombre dye job.

Anna shocked her Twitter followers and fans alike when she posted a picture of herself with purple and turquoise hair with dark undertones. Unique shades of purple, blue, or green hair seem to be very popular this summer, with Vanessa Hudgens, Nicole Richie, Lance Bass, and the previously mentioned Demi Lovato also following suit.

We know that Scarlett went very short for her latest film, Lucy, but the actress took it a step further and cut even more length off and bleached her color a bit. We've seen Scarlett go super-short before, so it seems as though the starlet isn't afraid of taking major hair risks!

It's almost as though the actress is sporting a new-age "Rachel." Jen decided to take her length up a bit, giving her hair a lot of volume and shape, and even dyed her hair a darker, more natural brown, as opposed to her usual perfectly-executed blonde highlights.

Summer is the perfect time to experiment with your hair and try out new looks, colors, and lengths. These stars have really pushed the envelope and (with the help of their stylists) have created beautiful new 'do's to rock this season. Would you ever try out a daring new 'do? Please share in the comments!