Their acoustic performance for the Red Cross charity relief fund.

Tsunami Aid: A Concert of Hope was a worldwide benefit held for the tsunami victims of the 2004 Indian Ocean Earthquake. It was broadcast on NBC and its affiliated networks of USA, Bravo, PAX, MSNBC, CNBC, SciFi Channel and other NBC Universal stations and was heard on any Clear Channel radio station. The benefit was led by the actor George Clooney on January 15, 2005, and was similar to America: A Tribute to Heroes (set up after the September 11th, 2001 attacks). Taking a cue from Bob Geldof (the man who had organized the Live Aid concerts for African famine relief), it consisted of famous Hollywood entertainers and former American presidents George H.W. Bush and Bill Clinton. It was two hours long with stories and entertainment from a huge array of Hollywood notables. It was estimated to raise at least five million dollars by the end of the broadcast.

The U.S. Geological Survey initially recorded the toll as 283,100 killed, 14,100 missing, and 1,126,900 people displaced. However, more recent analysis compiled by the United Nations lists a total of 229,866 people lost, including 186,983 dead and 42,883 missing.
The 2004 Indian Ocean earthquake was an undersea megathrust earthquake that occurred at 00:58:53 UTC on December 26, 2004, with an epicentre off the west coast of Sumatra, Indonesia. The quake itself is known by the scientific community as the Sumatra-Andaman earthquake.

The earthquake was caused by subduction and triggered a series of devastating tsunami along the coasts of most landmasses bordering the Indian Ocean, killing nearly 230,000 people in eleven countries, and inundating coastal communities with waves up to 30 meters (100 feet) high. It was one of the deadliest natural disasters in recorded history. Indonesia, Sri Lanka, India, and Thailand were the hardest hit.

With a magnitude of between 9.1 and 9.3, it is the second largest earthquake ever recorded on a seismograph. This earthquake had the longest duration of faulting ever observed, between 8.3 and 10 minutes. It caused the entire planet to vibrate as much as 1 cm (0.4 inches) and triggered other earthquakes as far away as Alaska.

The plight of the many affected people and countries prompted a widespread humanitarian response. In all, the worldwide community donated more than $7 billion (2004 U.S. dollars) in humanitarian aid.