US Pop and Soul singer Diana Ross performs during her concert at the "Live at Sunset" festival in Zurich, Switzerland, Wednesday, July 9, 2008. (AP Photo/Keystone/Steffen Schmidt)

US Pop and Soul singer Diana Ross performs during her concert at the "Live at Sunset" festival in Zurich, Switzerland, Wednesday, July 9, 2008. (AP Photo/Keystone/Steffen Schmidt)