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Sasha Pieterse is one stunning Little Liar! 

The Pretty Little Liars starlet looked absolutely amazing at the World Premiere of her new teen comedy, G.B.F., at the 2013 Tribeca Film Festival. Sasha rocked the red carpet in a gorgeous — and somewhat low-cut — Georges Hobeika atelier emerald green dress, sexy nude heels, and her signature loose, bouncy curls. Seriously, can Sasha get any cuter? 

In G.B.F., Sasha stars as high school Queen Bee named Fawcett. Not only does she have major attitude (Ali DiLaurentis 2.0, anyone?), but she’s also in the running for Prom Queen. What’s going to help Fawcett win the crown? A gay best friend, of course! The quirky film centers on the three most popular girls in school — Fawcett (Sasha), Caprice (Xosha Roquemore), and ‘Shley (Andrea Bowen) — as they compete for Prom Queen and for the affection of Tanner (Michael J. Willett), the school's recenty outed outcast, who they think will help them be fabulous. Think of it as Mean Girls meets Clueless

If it doesn’t already sound like your new favorite film, just look at this cast! Sasha stars alongside Awkward.’s Molly Tarlov, funny lady Megan Mullally, and Natasha Lyonne. In other words, it's perfect. 

G.B.F. premiered on April 19 at the 2013 Tribeca Film Festival in New York City. Watch the trailer here, check out Sasha's stunning red carpet look below, and tell us what you think!