Grupo Yndio is a Mexican band from Sonora founded in 1972, by some of the members of the dissolute Los Pulpos. 　　The band is known for Spanish covers of English-language pop hits, but with a distinctive Grupero style. Their best known hits include "Melodía desencadenada", "Línea telefónica" and "Herida de amor," Spanish covers of "Unchained Melody", "Telephone Line" and "Love Hurts" respectively. 　　They had two number-one hits in Mexico: 　　Their cover of "?l" was #1 for 4 weeks in 1973, alongside the original version by Los Strwck. 　　Their Spanish-language cover of "We Said Goodbye" (titled "?Por qué nos dijimos adiós?") in 1975, alongside the original version by Dave Maclean.