"Kiss Kiss Goodbye" is a song by Slovak singer-songwriter Adonxs. It was written by Adonxs himself alongside Adriano Lopes da Silva [lb] and Michaela Charvátová. The acoustic version of the song was first presented on 4 February 2025 and the studio version will be released on 7 March. It will represent the Czech Republic in the Eurovision Song Contest 2025.

On 11 December 2024, ČT announced that Adonxs, would represent Czechia in Basel, while the song "Kiss Kiss Goodbye" was announced as the Czech entry on 31 January 2025.^[1][2] Adonxs and the song were selected in various rounds by a ten-member international jury consisting of music professionals and former Eurovision entrants, a demoscopic jury consisting of 900 members from three countries, and a focus group.^[3] An acoustic version of the song was presented to the public on 4 February 2025 during the first semi-final of the 2025 Maltese national final, while its studio version will be released in March.^[2]

The Eurovision Song Contest 2025 will take place at St. Jakobshalle in Basel, Switzerland, and will consist of two semi-finals to be held on the respective dates of 13 and 15 May and the final on 17 May 2025.^[4] During the allocation draw held on 28 January 2025, the Czech Republic was drawn to compete in the second semi-final, performing in the second half of the show.^[5]