With his wife, Trudie Styler, and Raoni Metuktire, a Kayapo Indian leader in Brazil, Sting founded the Rainforest Foundation Fund to help save the rainforests and protect indigenous peoples there. In 1989, he flew to the Altamira Gathering to offer support while promoting his charity. His support continues and includes an annual benefit concert at Carnegie Hall, which has featured Billy Joel, Elton John, James Taylor and others. A species of Colombian tree frog, "Dendropsophus stingi", was named after him for his "commitment and efforts to save the rainforest". In 1988, the single "They Dance Alone (Cueca Sola)" chronicled the plight of the mothers, wives and daughters of the "disappeared", political opponents killed by the Pinochet dictatorship in Chile.