Annie Lennox, Kristin Davis and Scarlett Johansson launch Big Inequality Debate for International Women’s Day 8 March 2011 Oxfam Ambassadors, Annie Lennox, Kristin Davis, Angelique Kidjo and Scarlett Johansson and invite you to celebrate the 100th anniversary of International Women’s Day, on 8 March 2011 and make it a catalyst for positive change.