António Calvário was the first Portuguese representative at the Eurovision Song Contest in 1964. He is currently celebrating his 70th birthday and 50th career anniversary. He became one of the biggest artistts in Portugal in the 60's and 70's.

António Calvário sang the song Oração in Copehagen at the 1964 Eurovision Song Contest. It wasn't a promising start for the country by ending in the last place with nil points, alongside other three countries. Nevertheless, this didnt't prevent the singer from becoming one of the biggest artists in the country at the time. He was followed by legions of fans wherever he went. The singer stated to a Portuguese newspaper, Diário de Notícias, that "the participation at Festival da Canção is a very important landmark in my career".

The list of albums, songs, films and TV shows he took part is endless. The artist is celebrating his golden anniversary with the release of a double CD with many of his hits and a book of memoirs.