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Katy Perry played up her cerulean blue hue at tonight’s Grammy Awards by matching her hair color to her shimmering Elie Saab gown. We had a feeling she would rock this shade—37% of InStyle.com readers voted to see her in turquoise on the red carpet. Well, she came close! Tell us: Do you like how she matched her hair to her dress?

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Katy Perry debuted an electric blue hair color last week—and no, it’s not a wig. We caught up with her colorist Rita Hazan, the same woman who turned her strands lavender last year, for the inside scoop. “Katy wanted to go this particular color blue for a few weeks now,” Hazan told InStyle.com exclusively. “The blonde was not an interim color. She wanted to be blonde at the time, but knew it wouldn’t be permanent, just another Katy Perry look! It didn’t take long to transition to this color.” As for working with the pop star, it’s a collaborative effort. “We have a great relationship,” Hazan said. “Katy is the ideal client because she loves to be creative and unpredictable with her look which is a fun challenge for me, so we work very well together.” Tell us: Do you like her blue ‘do?

Plus, see more new celebrity hairstyles!

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Katy Perry dyed her hair blue! Ever the hair chameleon, this is the latest color the pop star has taken on, as she previously tried lavender (on our cover, no less!), black, blond, and red. And, no, this isn’t a wig, like her famous look from the 2010 MTV Movie Awards. Her colorist Rita Hazan confirmed to InStyle.com that she dyed Perry’s hair cobalt blue this week. Tell us: Do you like her new shade? Let us know in the comments!

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