Hayden Panettiere is a Widget Woman

Newly single Hayden Panettiere enjoys her first time in Hawaii, touring the island with a gal pal in Honolulu on Sunday (March 8).

The 19-year-old Heroes star wore a cougar tank from Forever 21‘s Shibuya Mon Amour line, as designed by Satine boutique owner Jeannie Lee. She’s also wearing Paige “Blue Heights” skinny jeans in Greywalls.

Hayden‘s fight to save the whales is seemingly never-ending. She writes, “A few months ago I announced our goal of getting 1,000,000 signatures for our petition to stop all commercial and lethal scientific research whaling in time for the June 2009 meeting of the International Whaling Commission. So far, we’ve done great and gotten over 90,000 signatures but with just a couple of months left, we really need to take this to the next level to reach our goal.”

Hayden continues, “That’s why I’ve worked closely with SocialVibe to design a really cool widget that allows anyone, anywhere, to just grab this widget and put it on their MySpace or Blog. It makes it so simple for your friends and family to sign on to our petition right where they see it. So all you have to do is just sign and grab the widget below!! … Now, it’s more important than ever that we reach our 1 million signature goal, and let the world know that this needless slaughter has to stop.”

Click inside for more pics and Hayden‘s widget…