U2 frontman Bono gives a high-five with one of children after making a speech during an event to plant trees in Tokyo's Odaiba as part of the Tokyo metropolitan government's "Green Island" project Tuesday, May 27, 2008. Odaiba is part of a sprawling man-made island in Tokyo Bay. (AP Photo/Itsuo Inouye)
Image: AFP-0922995, Irish rock star Bono signs autographs plants during a tree planting ceremony at a garbage island in Tokyo on May 27, 2008 ahead of the Tokyo International Conference on African Development (TICAD). Bono is here to attend the Tokyo International Conference on African Development (TICAD). Presidents, vice presidents and prime ministers from 44 African countries are gathering for a three-day meeting starting on May 28 to discuss issues including global food prices /Toru YAMANAKA, Place: Tokyo,JAPAN, License: Rights managed, Credit line: profimedia.cz, AFP
Image: AFP-0922996, Irish rock star Bono signs autographs during a tree planting ceremony at a garbage island in Tokyo on May 27, 2008 ahead of the Tokyo International Conference on African Development (TICAD). Bono is here to attend the Tokyo International Conference on African Development (TICAD). Presidents, vice presidents and prime ministers from 44 African countries are gathering for a three-day meeting starting on May 28 to discuss issues including global food prices /Toru YAMANAKA, Place: Tokyo,JAPAN, License: Rights managed, Credit line: profimedia.cz, AFP
Image: AFP-0922997, Irish rock star Bono is surrounded by children during a tree planting ceremony at a garbage island in Tokyo on May 27, 2008 ahead of the Tokyo International Conference on African Development (TICAD). Bono is here to attend the Tokyo International Conference on African Development (TICAD). Presidents, vice presidents and prime ministers from 44 African countries are gathering for a three-day meeting starting on May 28 to discuss issues including global food prices /Toru YAMANAKA, Place: Tokyo,JAPAN, License: Rights managed, Credit line: profimedia.cz, AFP
Image: AFP-0922981, Irish rock star Bono (C) is surrounded by children during a tree-planting ceremony at a landfill island in Tokyo on May 27, 2008 ahead of the Tokyo International Conference on African Development (TICAD). Bono is here to attend the Tokyo International Conference on African Development (TICAD). Presidents, vice presidents and prime ministers from 44 African countries are gathering for a three-day meeting starting on May 28 to discuss issues including global food prices /Toru YAMANAKA, Place: Tokyo,JAPAN, License: Rights managed, Credit line: profimedia.cz, AFP
U2 frontman Bono high-fives with a student before a ceremony to confer the degree of doctor of laws for Bono at Keio University in Tokyo, Tuesday, May 27, 2008. (AP Photo/Itsuo Inouye)
U2 frontman Bono, left, salutes as Keio University President Yuichiro Anzai delivers speech during a ceremony to confer the degree of Doctor of Laws for Bono at Keio University in Tokyo, Japan, Tuesday, May 27, 2008. (AP Photo/Itsuo Inouye)
Irish band U2's singer Bono, center, is flanked by Tokyo Gov. Shintaro Ishihara, left, and Japan's renowned architect Tadao Ando as they plant a tree with children during an event as part of the Tokyo metropolitan government's "Green Island" project at Odaiba, Tokyo. Odaiba is part of a sprawling man-made island in Tokyo Bay, Tuesday, May 27, 2008. (AP Photo/Itsuo Inouye)
Squatting in front of his name plate U2 frontman Bono holds a shovel as a guitar during an event to plant trees in Tokyo's Odaiba as part of the Tokyo metropolitan government's "Green Islad" project Tuesday, May 27, 2008. Odaiba is part of a sprawling man-made island in Tokyo Bay. (AP Photo/Itsuo Inouye)
Squatting in front of his name plate U2 frontman Bono jokes with a shovel and sunglasses during an event to plant trees with children in Tokyo's Odaiba as part of the Tokyo metropolitan government's "Green Islad" project Tuesday, May 27, 2008. Odaiba is part of a sprawling man-made island in Tokyo Bay. (AP Photo/Itsuo Inouye)
U2 frontman Bono smiles after planting a tree with children during an event as part of the Tokyo metropolitan government's "Green Island" project in Odaiba, part of a sprawling man-made island in Tokyo Bay, in Tokyo Tuesday, May 27, 2008. (AP Photo/Itsuo Inouye)
U2 frontman Bono high-fives with students before a ceremony to confer the degree of doctor of laws for Bono at Keio University in Tokyo, Tuesday, May 27, 2008. (AP Photo/Itsuo Inouye)
Singer Bono jokingly pretends to use a shovel to attack architect Tadao Ando at a tree planting event in Tokyo May 27, 2008. Bono participated in the event with Tokyo Governor Shintaro Ishihara and architect Tadao Ando to promote environmental awareness. REUTERS/Michael Caronna (JAPAN)
Singer Bono speaks to elementary school students at a tree planting event in Tokyo May 27, 2008. Bono participated in the event with Tokyo Governor Shintaro Ishihara and architect Tadao Ando to promote environmental awareness. REUTERS/Michael Caronna (JAPAN)
Singer Bono attends a tree planting event in Tokyo May 27, 2008. Bono participated in the event with Tokyo Governor Shintaro Ishihara and architect Tadao Ando to promote environmental awareness. REUTERS/Michael Caronna (JAPAN)
