Israel participated in the Eurovision Song Contest 2021 in Rotterdam, the Netherlands, having internally selected Eden Alene as their representative. She was due to compete in the 2020 contest with "Feker Libi" before the event's cancellation. Her entry for 2021, "Set Me Free", was chosen during the national selection competition HaShir Shelanu L'Eurovizion organised by the Israeli Public Broadcasting Corporation.

Belgium participated in the Eurovision Song Contest 2021 with the song "The Wrong Place" written by Alex Callier and Charlotte Foret. The song was performed by the band Hooverphonic, which was internally selected by the Belgian broadcasters Vlaamse Radio- en Televisieomroeporganisatie (VRT) and Radio Télévision Belge de la Communauté Française (RTBF) in March 2020 to represent the nation at the 2021 contest in Rotterdam, Netherlands, after they were due to compete in the 2020 contest with "Release Me" before the 2020 event's cancellation. The song, "The Wrong Place", was presented to the public on 4 March 2021.