Plastiques Festival Diadacia 1

Plastiques Festival Diadacia is a competition used as a national selection to find the entrant for Plastics Song Contest. It was organised by the national broadcaster of Diadacia and announced on 13 May 2017 as a replacement for Diadac Music Festival, which was previously used to select the Diadacian entrants for Plastics Song Contest 1 and Plastics Song Contest 2. The new format consists of three heats, each containing five songs performed to a four jurors (musicians from across Diadacia), the top 2 from each heat qualifying to the grand final, and 3rd place going to the second chance round.