Lithuania in the Eurovision Song Contest 2021

Lithuania was represented at the Eurovision Song Contest 2021 with the song "Discoteque", written by Vaidotas Valiukevičius, Robertas Baranauskas, Mantas Banišauskas, Laisvūnas Černovas, Kalle Lindroth, and Ilkka Wirtanen. The song was performed by the band The Roop. The Lithuanian broadcaster Lithuanian National Radio and Television (LRT) organised the national final Pabandom iš naujo! 2021 (Let's try again! 2021) in order to select the Lithuanian entry for the 2021 contest in Rotterdam, Netherlands. The national final took place over four weeks and involved 21 competing entries. The results of each show were determined by the combination of votes from a jury panel and a public vote. In the final, six artists and songs remained, and "Discoteque", performed by the Roop, was selected as the winner.

Lithuania was drawn to compete in the first semi-final of the Eurovision Song Contest which took place on 18 May 2021. Performing as the opening entry for the show in position 1, "Discoteque" was announced among the top 10 entries of the first semi-final and therefore qualified to compete in the final on 22 May. It was later revealed that Lithuania placed fourth out of the 16 participating countries in the semi-final with 203 points. In the final, Lithuania performed in position 18 and placed eighth out of the 26 participating countries, scoring 220 points.