 Complete the following phrase:  Nascimento was the leader of a five-member band, Os Rocks, formed in Luanda in 1962. The band travelled to mainland Portugal in the mid-1960s, participating in song festivals and releasing a well-received EP, Wish I May, in 1966. In 1967, Nascimento entered the Portuguese Eurovision selection contest, the Festival da Canção, as a solo artist with the song O vento mudou The Wind Changed. He won the event by a comfortable margin, and went forward to represent Portugal in the 12th 