Summer’s It bag proves painted faces aren’t just for kids. The Prada totes, designed by Paris-based illustrator Jeanne Detallante, are a favorite with celebs like Dakota Fanning, thanks to candy-colored handles.

Prada “Saffiano” satchel, $4,100 at neimanmarcus.com.

Hypercolor, the 1980s shirt that changed shades as you sweated, was disturbing, if not disgusting. But Thermicolor technology is finally put to cool use with Italia Independent’s sunglasses: They go from black to fun patterns — polka dots! the Union Jack! animal prints! — as you heat up in the sun.

I-metal thermic frames, $227 at italiaindependent.com.

The ultimate in high-low style?

Sneakers worthy of a night on the town. And Pharrell Williams’ pair take the cake: old-school Adidas Stan Smiths (a fashion crowd fave) encrusted in bling.

Gasoline Glamour, commissioned by Swarovski to create his sneaks, accepts custom orders ($1,000 to $4,000) — not cheap, but whatever makes you “Happy.”

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Summer just got a whole lot moodier thanks to Lorde’s buzzy cosmetics collaboration with MAC. Channel your inner “Royal” with Penultimate Eye Liner in Rapidblack ($19.50) and the singer’s signature moody deep plum lipstick ($16) — aptly named “Pure Heroine,” just like her platinum-selling debut album.

Once a faux pas, head-to-toe prints — like Rihanna’s tropical-patterned Zoe Karssen get-up — are now 100 percent in. Stars like Rachel Bilson and Beyoncé are also coordinating their couture. It’s a match made in heaven!

The latest celeb hue du jour has us tickled pink. Rihanna went for a cotton-candy wig, while Rumer Willis and Kesha adopted more permanent rosy outlooks. Color us impressed!

Harking back to the Kangol toppers once beloved by LL Cool J, RiRi donned a floral version by Joy Rich ($53 at joyrichstore.com).

Designer spins are popping up at Kenzo and Acne Studios, but they’re available at a reasonable price on asos.com and at Urban Outfitters.

She may be an attorney, but one wouldn’t know it from her wardrobe. Amal Alamuddin — who managed to beguile George Clooney — dresses more like an off-duty model than a buttoned-up barrister.

Whether donning a minidress with quirky mismatched pumps or printed denim and lace crop tops, she has potential to usurp the biggest street-style stars. And we can’t wait for the wedding dress!