Hayden Panttiere's Last Call

Hayden Panettiere walks the red carpet of Declare Yourself’s “Last Call” party at the Green Door on Wednesday in Los Angeles.

Declare Yourself is a national nonpartisan, nonprofit campaign to empower and encourage every eligible 18-year-old in America to register and vote in the presidential primaries and 2008 presidential election.

Jessica Alba was recently part of Declare Yourself’s “Only You Can Silence yourself” campaign.

For more information on this cause, visit DeclareYourself.com.

Top by MLH, Pants by Fendi, Shoes by Yves Saint Laurent, Bag by Cavalli and Jewelry by Chris Aire.

35+ more pics inside of Hayden Panttiere‘s Last Call…