A colourful mix of politicians, business leaders, actors and singers flocked to New York for the fifth meeting of Bill Clinton’s philanthropic summit
Slideshow: Stars come out for Clinton
Bill Clinton looks on as his fifth philanthropic summit opens in New York
Chilean president Michelle Bachelet, Wal-Mart chief Mike Duke and Coke's Muhtar Kent at the opening panel discussion
Australian PM Kevin Rudd, also on the opening panel, argued the world should look to the Group of 20 nations rather than the G8 on issues such as climate change and poverty
President Obama addresses the opening session at the Sheraton in New York
Two presidents embrace: Mr Clinton praised Mr Obama's experience of working for an NGO in his role as a community organiser in Chicago
Actor Matt Damon announces a $2m commitment to provide 50,000 people in Haiti with safe water and sanitation over the next three years as part of his campaigning work with Water.org
John Key, New Zealand's prime minister, was among the 1,200 strong mixture of politicians, business leaders and celebrities at the summit
Unlikely bedfellows: Singer Alicia Keys rubs shoulders with Gerry Adams, the Northern Irish politician
Bill Clinton is joined by a group of Kenyan schoolgirls, beneficiaries of a CGI-sponsored educational programme
Comic actor Ben Stiller in a serious moment
Power couple: Actors Demi Moore and Ashton Kutcher
Diane Sawyer, US TV anchor, moderates a panel including ExxonMobil chief Rex Tillerson (on video monitor)
American actress Jessica Alba joined the ranks of celebrities at the Sheraton on Wednesday
Michael Bloomberg, New York's mayor, speaks at the session on Investing in Girls and Women
Actress Barbra Streisand was another of the high-profile attendees from the entertainment world
Singer Ricky Martin speaks at a special session on human trafficking
New York Times columnist Nicholas Kristof appears on a panel with Queen Rania Al-Abdullah of Jordan
And inevitably....Bono makes an appearance at the summit, ahead of his band's performance at Giants Stadium
Actor Brad Pitt (R) joins Bill Clinton to discuss the rebuilding of New Orleans after Hurricane Katrina
US Secretary of State Hillary Clinton gives the closing speech on Friday on the fight against global hunger
