Beauty Recap: Britney Spears's Lustery Locks, Jessica Szohr's Knockout Pout, and More

Glee star Dianna Agron debuts her new 'do while leaving a salon in West Hollywood.

Jessica Alba hosts the opening of Rimowa on Rodeo Drive with teal lined lids and caramel streaked strands.

See more of Jessica Alba's hairstyles.

Christina Aguilera looked like a modern day Marilyn Monroe with her platinum locks, shiny red lips, and enormous lashes at the NBC Upfront in NYC.

See more of Christina Aguilera's hairstyles.

Keri Hilson glowed with rosy bronze cheeks, matching lips, and a blonde bob at the 59th Annual BMI Pop Awards in Beverly Hills.

Julianna Marguiles arrived for The Late Show with David Letterman in NYC with a loose romantic updo and mauve lips.

Jessica Szohr pairs her messy ponytail with bright pink lips at the premiere of Love,Wedding, Marriage in LA.

See more of Jessica Szohr's hairstyles.

Mariska Hargitay adds some personality to her updo with light volume in the front at The Joyful Heart Foundation Gala in NYC.

Vanessa Hudgens balances out her big bun with dramatic side bangs at the Cannes International Film Festival in France.

See more of Vanessa Hudgens's hairstyles.

Rachel McAdams makes her porcelain skin shine with honeysuckle lips and finger wave curls at a screening of Mightnight in Paris in NYC.