"They use a bottle of vodka to clean a wound, a headlamp instead of surgical lights, and a hacksaw instead of a scalpel to remove an injured leg," he said.

Many celebrities have made donations to the relief effort, including DiCaprio, who has given $1 million.

Celebrities were on hand to answer phones as viewers called to make smaller donations. The Hollywood volunteers included director Steven Spielberg, actor Mel Gibson, and actresses Julia Roberts and Reese Witherspoon.

CNN's Anderson Cooper provided live updates from Haiti, showing graphic video and interviewing survivors, including two children who had been pulled from the rubble.

Musical performers included Madonna, Jay-Z, Rihanna, Bono and The Edge. Sheryl Crow performed with Kid Rock and Keith Urban, and Bruce Springsteen sang the civil rights anthem "We Shall Overcome."

Haitian-born musician Wyclef Jean has returned to Haiti since the earthquake and spoke of carrying bodies to the cemetery. With a Haitian flag wrapped around his neck, he closed the concert with a call to rebuild Haiti, singing a song in honor of the country.

Some of the funds raised in the telethon will go to Jean's Yele Haiti Foundation. Other charities that will benefit from the drive are Oxfam America, the Red Cross, UNICEF, the United Nations World Food Program, and the Clinton Bush Haiti Foundation, which was recently formed by the two former U.S. presidents.