Celebrity colorist Bianca Hillier, a.k.a., the queen of balayage, told ET why she's looking to the Olsen Twins for hair inspo ...

In recent years, though, our penchant for grungy hair has been usurped by the bouncy, beachy blowdry, which is exactly why ...

Related: The Unofficial Guide to Mary-Kate and Ashley Olsen's Hair Evolution Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to ...

I 'Don't Compete' with Their 'Partnership' Mary-Kate and Ashley Olsen's Hairstylist Reveals Secret to the Sisters' Signature Waves and How Their Hair Differs Mary-Kate and Ashley Olsen's The Row ...

Mary-Kate and Ashley Olsen are twinning… quite literally ... She also added a pair of pointy-toed red heels and a gold anklet for a pop of color. Meanwhile, Ashley rocked a long, black blazer ...

Mary-Kate and Ashley Olsen have been inspiring our outfits since ... Stepping out onto the block coloured carpet at the Metropolitan Museum of Art, Mary-Kate and Ashley both wore lace for the ...

"I set her hair with clips and let it air-dry and it turned out so perfect." Related: Mary-Kate and Ashley Olsen's The Row Remains the Most Buzzy Show at Fashion Week — and This Season Had ...

Related: The Unofficial Guide to Mary-Kate and Ashley Olsen's Hair Evolution Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer ...