Raking in nearly half of all votes on the WENN poll, the "Wanted" actress most recently visited Pakistan as a UNHCR Goodwill Ambassador seeking solutions to displacement from devastating floods.
Coming as a bit of a surprise, Miley Cyrus ranked third with 15 per cent - beating out known world peace crusader Bono, who had to settle for fourth place with 14 per cent of votes. Rounding out the top five were pro-Christian musicians The Jonas Brothers, who finished with five per cent of the votes.