 In July 1984, Ricky Melendez, 16, the sole remaining original member, left the group in a huge concert in his birth town, Caguas, Puerto Rico.Up until then, he was the only Menudo member to remain with the group for seven years.He was replaced by the group's most popular alumnus, Ricky Martin, then 12, who debuted on the album, "Evolución "("Evolution").