Belgium , France , Germany , Italy , Luxembourg , Netherlands , and Switzerland made their second appearances following their débuts in 1956 . Austria and Denmark made their débuts ; these countries had wanted to participate in 1956 , but had applied to the European Broadcasting Union after the deadline for song submissions for that year 's contest had passed , thus missing it . With those joining in 1957 , the total number of countries was ten , three more than in the first ever contest
first ever contest
Eurovision Song Contest 1956
Eurovision Song Contest 1957