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DREW BARRYMORE appeared on OPRAH WINFREY's show Monday to announce that she is making a $1 million donation to help the World Food Programme (WFP) feed thousands of school children in Kenya.

"I have seen with my own eyes what a difference a simple cup of nutritious porridge can make in a child's life," said Drew, who has traveled to Kenya twice in two years. "It helps them learn, stay healthy and sets them on track for a bright future. I urge everyone -- everywhere -- to help WFP 'Fill the Cup' for hungry children, and make hunger history."

Drew's generous contribution kicks off WFP's new 'Fill the Cup' campaign, which challenges America to help feed 10 million children for a year.