Soccer Aid 2012: Robbie Williams in Mexico

UNICEF Ambassador Robbie Williams travels to Mexico, a country where over half the children live in poverty. Watch

Ewan McGregor Issues Appeal for the Children of the Sahel

Actor and UNICEF Ambassador Ewan McGregor delivers a public service announcement appealing for aid for children affected by the Sahel food crisis. Watch

Night of 100 Stars 2012 Tony Denison from the Closer

Tony Dennison from “The Closer” talks about the Sunshine Kids Foundation at the 22nd annual Night of 100 Stars Oscar Gala on Feb. 26th, 2012. Watch

Got Your 6 Celebrity PSA

The Got Your 6 Celebrity PSA featuring Tom Hanks, Pharrell Williams, Bradley Cooper, Milla Jovovich, Alec Baldwin, Michael Douglas, Sarah Jessica Parker and Judith Light. Watch

Jodie Foster and Matt Damon: It's Personal

This Mother’s Day, Water.org, Jodie Foster and Matt Damon challenge you to transform the life of another mom. A simple action on your part has a huge impact. Take the challenge: Honor your mother, honor another. Click here for more info. Watch

Miranda Cosgrove's Light The Night Walk PSA

2012 Light The Night Walk PSA featuring Leukemia & Lymphoma Society National Spokesperson Miranda Cosgrove. Watch

Stars Support No Mothers Day Campaign

Christy Turlington's Every Mother Counts invites mothers to disappear on Mother’s Day to help raise awareness about the hundreds of thousands of women who die each year from complications during pregnancy or childbirth. Watch

Angélique Kidjo supports World Immunization Week

UNICEF Goodwill Ambassador Angélique Kidjo delivers a public service announcement encouraging vaccination efforts during World Immunization Week. Around the world, 4 out of 5 children are vaccinated against diphtheria, tetanus and pertussis – but more must be reached. Watch

Justin Bieber And Miley Cyrus Speak Out For World Wish Day

World Wish Day is 29 April. Make-A-Wish Foundation wish granters Justin Bieber, Miley Cyrus, Cake Boss’ Buddy Velastro, internationally renowned photographer Nigel Barker, WWE Superstar John Cena, actress Tiffani Thiessen and host of the Daily Show, Jon Stewart, are part of a special group of celebrity wish granters who’ve come together to to raise awareness about World Wish Day and the Make-A-Wish mission. Watch

Selena Gomez: Text FOOD to 864233 To Save Children

UNICEF Ambassador Selena Gomez is lending her star power to UNICEF’s campaign to save lives in the Sahel region of West and Central Africa. Watch

Rebecca Gibney urges support for West Africa Food Crisis

Australian actress and World Vision Ambassador Rebecca Gibney has called on Australians to donate to World Vision’s West Africa Food Crisis Appeal. Watch

Leighton Meester DKMS Blood Cancer PSA

Leighton Meester recently teamed up with 19-year-old blood cancer survivor, Kerri Mullen to create a PSA for DKMS, urging people to join the fight against blood cancer. Watch

Adam Carolla & Kate Flannery Talk To Look To The Stars About Comedy For A Cure

Adam Carolla (“Celebrity Apprentice”) & Kate Flannery (“The Office”) headline the 11th Annual Comedy for a Care fundraiser for Tuberous Sclerosis Alliance. Watch

Bill and Giuliana's I Will If You Will Challenge

Being huge sport and fashion fans, Bill and Giuliana Rancic are daring 5000 people to commit to Earth Hour. Watch

Isabel Lucas for Earth Hour 2012

Isabel Lucas' IWIYW challenge for WWF's Earth Hour 2012 Watch

The QN2A Project: Let's Turn Questions Into Answers

Stand Up To Cancer (SU2C), CTCA and SU2C ambassador James Denton put the spotlight on the Big Questions and show how you can help turn them into answers. Watch

90210's Raj & Ivy Want U 2 Be The Match

The CW’s 90120 Gillian Zinser and Manish Dayal talk about the need for a younger and more diverse Be The Match Registry and how easy it is to join and donate marrow. Watch

Alec Baldwin: Boycott Circuses That Use Animals

Actor and animal defender Alec Baldwin describes the sad plight of elephants who are torn from their families and forced to perform grueling tricks in the circus. Watch

Ricky Gervais Saves Animals From Cosmetics Testing

Ricky Gervais launches Cruelty Free International, a global campaign to end cosmetic tests on animals. Watch

George Clooney Witnesses War Crimes in Sudan's Nuba Mountains

WARNING This video contains graphic content that some viewers may find disturbing. Watch