Christina María Aguilera

In the run-up to the 2004 United States presidential election, Aguilera was featured on billboards for the "Only You Can Silence Yourself" online voter registration drive run by the nonpartisan, non-profit campaign "Declare Yourself". In these political advertisements, shot by David LaChapelle, Aguilera was shown with her mouth sewn shut, to symbolize the effects of not voting. She appeared on The Oprah Winfrey Show to discuss the importance of voting. In late 2007 Aguilera became the spokesperson for "Rock the Vote" where she urged young people to vote in the 2008 presidential election. In partnership with "Rock the Vote", she appeared in a public service announcement which aired in summer 2008. The advert showed Aguilera with her son, Max Bratman, wrapped in an American flag, while singing "America the Beautiful".
In November 2005, all of her wedding gifts were submitted to various charities around the nation in support of Hurricane Katrina victims. That year she also performed at "Unite of the Stars" concert in aid of Unite Against Hunger in Johannesburg, South Africa and at the Nelson Mandela Children's Fund at the Coca-Cola Dome. In March 2007 Aguilera took part in a charity album (remaking Lennon's "Mother"), proceeds benefit Amnesty International's efforts to end genocide in Darfur. The album titled, Instant Karma: The Amnesty International Campaign to Save Darfur, was released June 12, 2007 and featured various artists. In 2008 she headlined London's Africa Rising charity concert at Royal Albert Hall which raises awareness for finding substantial issues facing the continent. Later that year she appeared on the Turkish version of Deal or No Deal "Var mısın? Yok musun?" , where she won $180,000. Proceeds were donated to a charity program for orphans.
In 2009 Aguilera became the global spokesperson for World Hunger Relief appearing in advertisements, online campaigns and a public service announcement. Aguilera and her husband traveled to Guatemala with the World Food Programme to bring awareness to issues such as the high malnutrition rate in that country. She met with families of the villages and some of the beneficiaries of WFP's nutrition programs. Aguilera adds, "The people of WFP do such a great job helping hungry children and mothers. I'm thankful for the opportunity to be part of such a wonderful project." Since becoming a global spokeswoman Aguilera has helped raise over $22 million which helped provide over 90 million meals. She was honored at Variety's annual "Power of Women" luncheon in late 2009 alongside other women in entertainment for her contribution to philanthropic and charitable causes. In response to the 2010 Haiti earthquake, Aguilera donated a signed Chrysler 300 which was auctioned for relief efforts. She was one of the many artists who appeared on the Hope for Haiti telethon on January 22, 2010, donations directly benefited Oxfam America, Partners In Health, Red Cross and UNICEF. She later appeared on a second public service announcement alongside sports icon Muhammad Ali to raise funds for the World Food Programme's efforts to bring food to survivors of the earthquake. Later that year Aguilera made her first visit to Haiti as an ambassador against hunger where she visited two schools in the town of Léogâne. During her time there she assisted in the ongoing efforts to help the badly damaged town where she served meals and highlighted reconstruction efforts in the country. That year, Aguilera was appointed UN ambassador for the WFP.