"Blair has always been well put-together and her style is classic, but lately we've been experimenting with deeper and brighter lip colors," Tagliamonti tells Us . "I love berry colors on Leighton -- she really has perfect lips. Even oranges look really lovely on her."

As for Serena, "I would describe her makeup as warm, sunny and a bit fashion forward, but in an carefree way," says Tagliamonti. "We always focus on the eyes with a little shimmer and lots of mascara to keep her eyes popping and keep her skin warm and more natural."

PHOTOS: Blake Lively's hottest hairstyles ever

And while Nate Archibald ( Chace Crawford ) underwent a major hair change a few seasons ago when he ditched his man bangs, Blair and Serena's hair has remained fairly consistent. "Serena's look is effortless, care-free and very California," Johnson explains. "Whereas Blair, who was so preoccupied with her hair being so perfect early on, has really learned to let her hair down."

Источник: Us Magazine