The contest also featured the group O'G3NE which previously represented the Netherlands at another Eurovision event , the Junior Eurovision Song Contest 2007 , as Lisa , Amy and Shelley , with the song " Adem in , Adem Uit " . In addition , the contest featured two lead singers previously participating as backing vocalists for the same countries : Israel 's representative Imri Ziv who backed Nadav Guedj in and Hovi Star in and Serbia 's representative Tijana Bogićević who backed Nina in
Junior Eurovision Song Contest 2007
Junior Eurovision Song Contest 2007
Eurovision Song Contest 2017