Celebrities and Charities Unite for Haiti

Oprah Winfrey and her fellow celebrities are urging their fans to donate to their favorite charities to help bring aid to Haiti.

Oprah asked her fans to donate money to the Red Cross. "This is a time where we, as a global nation, should come together and support those who are in need."

Madonna has donated $250,000 to Partners In Need, and released this statement about the devastation in Haiti: "My prayers are with the people of Haiti. I can't imagine the terrible pain and suffering they are experiencing. Sadly the depths of the tragedy are just becoming known and the need for our support grows more urgent with every passing moment. I have given a donation of $250,000 to assist Haiti's earthquake victims through Partner's in Health, one of Haiti's leading health care providers. I urge all of my friends and fans around the world to join me collectively to match my contribution or give in any way you can. We must act now. Thank you for your support."

Natalie Portman, who serves as the Ambassador of Hope for FINCA, has urged people to donate what they can. "Please help FINCA Haiti provide the resources to our Village Banking clients so they can begin to get back on their feet and build anew. There has rarely been a more urgent need for generosity. Please give what you can, and I thank you for your continued support of FINCA programs around the world."

Coldplay frontman Chris Martin made his own call to action, urging people to donate to Oxfam. "I visited Haiti with Oxfam a few years ago. It's a country of extreme poverty and brutal living conditions," Martin tells AP. "Most people in Port-au-Prince live in tin shacks. The earthquake that has struck Haiti will have turned the city into an unimaginable hell."

Wyclef Jean asked for contributions to his Yele Haiti Foundation after the earthquake struck last night, and Adam Lambert tweeted in support of UNICEF.

Brad Pitt and Angelina Jolie donated $1 million to the Doctors Without Borders for the organization's emergency medical operations in Haiti.

Olivia Wilde works with the organization Artists for Peace and Justice, supporting the work of Fr. Rick Frechette, who has done humanitarian work for Haiti for the past two decades. She says in a statement, "I can say with pure confidence, from first-hand knowledge that this is one of the most effective ways to offer critical, and sustainable help to the people of Haiti."

"Precious" director Lee Daniels announced today that the devastation overseas makes Sunday's Golden Globe Awards seem "so unimportant."

"Ultimately, what we do is so un-newsworthy in comparison and so unimportant when you have things like this at hand," Daniels tells AP. "'Precious' seems so unimportant when casualties like that happen."

While no firm numbers have been released, it's feared that hundreds of thousands may have died in Tuesday's temblor.

See how other stars give back below: