At the 2010 Met Costume Institute Gala, our eyes were definitely on what the celebrities were wearing. But we were also anxious to see how the stars' strands would stand up against the New York City humidity.

With summerlike weather, celebrity hairstylists were challenged to perfect hairstyles -- including messy updos, glam waves, and sophisticated buns -- that could combat the frizzy-hair air.

Jessica Biel and Chloë Sevigny sport messy updos at the 2010 Met Costume Institute Gala. Photos: AP | WireImage

Messy Strands
The weather may not have influenced Jessica Biel and Chloë Sevigny's "imperfectly perfect" hairstyles, but the two starlets managed to own the tousled looks on the Met Gala red carpet. To create Biel's grungy-glamorous 'do, Adir Abergel, celebrity hairstylist for Frederic Fekkai, started out by applying Fekkai Coiff Bouffant Lifting & Texturizing Spray Gel to the star's roots to add volume, then loosely dried the hair with his hands.

With a 1¼ inch curling iron he created a natural wave and sprayed Fekkai Beach Waves to maintain the curl. Abergel then took a few pieces of hair and knotted them together to create a "dread locks" texture. He pulled the hair back and threw it into a high twist to achieve the Brigitte Bardot effect, leaving the front pieces to fall naturally. He finished with the Fekkai Coiff Sheer Hold Spray.

Taylor Swift, Iman, and Kate Bosworth work waves at the 2010 Met Costume Institute Gala. Photos: AP | Getty Images (2)

Glamorous Waves
Wavy tendrils embody old Hollywood glamour. From frace-framing waves to sculptured curls to loose and flowing strands, Taylor Swift, Iman, and Kate Bosworth illustrate that this hairstyle can be worn at any age without looking dated. Swift and Bosworth keep it fresh with soft, pretty makeup, while Iman reminds us of a silver screen siren with her smoky eyes and deep, burgundy lips.

Joy Bryant and Diane Kruger wear bun updos at the 2010 Met Costume Institute Gala. Photos: Getty Images (2)

Chic Buns
Actresses Joy Bryant and Diane Kruger braved the elements beautifully with bodacious buns. Bryant's dark strands were sleekly gathered into this sophisticated updo, which she balanced with punchy pink lipstick, while Kruger offset her low knot with a barely there middle part to complement her understated makeup.

Which celebrity hairstyle do you think came out on top? Leave a comment, and be sure to check out more fashion and beauty trends from the 2010 Met Costume Institute Gala!