Hayden Panettiere dolls up in red as she attends the Vanity Fair and Juicy Couture “Vanities” 20th Anniversary party held at Siren Studios in Hollywood on Monday night (February 20).

The 22-year-old actress, carrying a Lauren Merkin clutch, was just one among the many helping Vanity Fair magazine celebrate the award season.

In addition to supporting Shailene Woodley‘s All It Takes organization, the reception
kicked off Vanity Fair’s “Campaign Hollywood 2012,” the magazine’s annual week-long series of events and one-of-a- kind moments in support of charitable causes that lead up to the Academy Awards.

10+ pics inside of Hayden Panettiere…