Amanda Seyfried's Sexy Premiere Style

Credit: Fred Duval/FilmMagic

A rising style star!

Amanda Seyfried has come a long way since playing a lovable Karen Smith in Mean Girls. Not only has she taken on several lead roles, but she's been on a ton of best-dressed lists -- especially lately.

During her press junket for the sci-fi action flick, In Time, the star, 26, stepped out in bold and bright red carpet ensembles -- with each being sexier than the one before.

On October 20, the star paid homage to her co-star, Justin Timberlake, and brought sexy back in a backless Prabal Gurung, violet-splashed dress and black pumps.

A week later, she showed off her flawless legs in a turquoise ensemble by H&M: short shorts and a matching blazer.

Click here for more of Seyfried's stunning looks from her various premieres.