Alicia Keys (L), former U.S. President Bill Clinton (2nd L) and Shakira (R) listen to U2's Bono during an event at the Apollo Theater for the Clinton Global Initiative in the Harlem neighborhood of New York September 29, 2007.
United Nations High Commissioner for Refugees (UNHCR) Goodwill Ambassador Angelina Jolie speaks during an annual meeting of UNHCR's governing executive committee in Geneva October 4, 2011.
Entertainment host Oprah Winfrey (C) poses with high school students during her school's first graduation ceremony at the Oprah Winfrey Leadership for Girls at Henley-on-Klipk, outside Johannesburg January 14, 2012.
Actor George Clooney is arrested for civil disobedience after protesting at the Sudan Embassy in Washington March 16, 2012. Clooney was protesting the escalating humanitarian crisis in Sudan.
UNHCR Special Envoy Angelina Jolie meets Syrian refugees in the Bekaa Valley, Lebanon in September in this UNHCR handout photo.
US actress Mia Farrow, a UNICEF goodwill ambassador, smiles as she holds a Haitian baby during her visit to a shelter in the town of Gonaives September 20, 2008. Haiti has been blasted by four storms - Hurricanes Gustav and Ike and Tropical Storms Fay and Hanna - since mid-August, killing hundreds and destroying homes and crops.
United Nations High Commissioner for Refugees (UNHCR) Goodwill Ambassador Angelina Jolie listens as an Iraqi refugee woman talks about her experience in Iraq, in Jaramana, a suburb in southern Damascus October 2, 2009.
U.S. Senator John Kerry (L) talks to actor George Clooney at the airport in Juba, south Sudan January 9, 2011, after his visit to assess the country's readiness for the referendum on independence. Millions of jubilant south Sudanese started voting on Sunday in a long-awaited independence referendum that is expected to see their war-ravaged region emerge as a new nation.
Besides donating her eyes to the Eye Bank Association of India, Aishwarya Rai has also opened Aishwarya Rai Foundation. As the goodwill ambassador for Smile Train, the actress had also been a part of an ad for the charity. The actress has also become a Goodwill Ambassador for the joint United Nations Programme on HIV and AIDS (UNAIDS).
England's David Beckham, in his role as UNICEF Goodwill Ambassador, is seen posing for a photograph with local mother Tamara, who is living with HIV and her three year old son Sesiphi who was born free from HIV, during a visit to a clinic in Cape Town, South Africa in this December 3, 2009 handout photograph received in London. During the visit Beckham met and talked to young pregnant women and new mothers who are living with HIV, and was informed on how the UNICEF 'Mothers to Mothers' (M2M) programme is supporting HIV positive pregnant women and new mums.
Singer Elton John gestures on stage during the amfAR New York Gala which begins Fall 2011 Fashion Week in New York February 9, 2011.
Challenging roles, jaw-dropping looks and outstanding performances - these aren't enough for the celebrities to hit the headlines. When it comes to reaching out to the world, embracing good cause, and lending a helping hand, your favorite stars don't show any disinterest. On World Humanitarian Day, we give you an insight into their humanitarian work.
Colombian pop star Shakira is surrounded by students of Loma del Peye, a new school under construction, in Barranquilla April 11, 2011. The school building is funded by the Barefoot Foundation, a charity organisation that Shakira founded.
Not everybody is aware of the fact that Shilpa Shetty, who bagged Celebrity Big Brother 2007 title, had donated her winning amount to AIDS awareness campaigns in India. The actress has also been actively involved with PETA.
Aamir Khan, who has been associated with several noble causes, recently donated 25 lakh for the flood victims of Uttarakhand. Goodwill ambassadors of UNICEF Aamir Khan, Priyanka Chopra and Sharmila Tagore had last year taken the pledge to work for children's survival and development.
In 2010, Priyanka Chopra took on the role of the UNICEF national ambassador to offer help to Indian children and support their right to education. Besides speaking about child rights, Priyanka Chopra has left no stone unturned to spread the word regarding the same.
U.S. actor and director Sean Penn holds an Egypt flag at Tahrir Square during a protest against the ruling military council, after Friday prayers in Cairo September 30, 2011. Egyptian activists converged on downtown Cairo on Friday for a demonstration to press military rulers to speed up the transfer of power to civilians and revoke emergency laws once used by ousted President Hosni Mubarak against his opponents.
Vidya Balan had donated Rs 10 lakh to a charity that takes care of Bengali Film Technicians. She was also in news for accepting rural development minister Jairam Ramesh's offer to take on responsibilities of the brand ambassador for drinking water and cleanliness campaign.
Actress Demi Moore (C) and Maiti Nepal Chairperson Anuradha Koirala (R) arrive for a news conference organized at Maiti Nepal in Kathmandu April 7, 2011. Maiti Nepal is an organization which aims to protect Nepali girls and women from crimes like domestic violence, trafficking for flesh trade, child prostitution, child labor and various forms of exploitation and torture.
Salman Khan's NGO by the name Being Human speaks volumes of his unconditional love towards children. Being Human may have kicked off as a charitable trust to help those who are underprivileged. With his consistent and determined efforts, Salman Khan has made the Foundation earn huge popularity. The foundation offers help to children in terms of education and healthcare.
John Abraham has been actively involved in campaigns of People for the Ethical Treatment of Animals (PETA). The actor has also been a part of Habitat for Humanity, a yearly Jimmy and Rosalynn Carter Work Project. Having worked as a volunteer for several years, John had played an instrumental role in raising funds for those who have low incomes to help them build secure homes.
Actress Charlize Theron, founder of the Charlize Theron Africa Outreach Project (CTAOP), attends a breakfast briefing highlighting responsibility towards an AIDS-free generation in Washington April 18, 2013.
Actor Amitabh Bachchan in February this year announced Rs. 25 lakh for charity towards the betterment of the girl child in India. He has also been a part of several charitable causes such as UNICEF's polo campaign.