Bulgaria participated in the Eurovision Song Contest 2011 with the song "Na inat" written by Sebastian Arman, David Bronner, Poli Genova and Borislav Milanov. The song was performed by Poli Genova. The Bulgarian broadcaster Bulgarian National Television (BNT) organised the national final Bŭlgarskata pesen v „Evroviziya 2011” in order to select the Bulgarian entry for the 2011 contest in Düsseldorf, Germany. 19 entries were selected to participate in the national final, held on 23 February 2011, where "Na inat" performed by Poli Genova emerged as the winning entry following the combination of votes from a 55-member jury panel and a public televote.

Moldova participated in the Eurovision Song Contest 2011 with the song "So Lucky" written by Roman Iagupov, Mihai Gîncu, Andy Shuman and Marc Elsner. The song was performed by the band Zdob şi Zdub. The Moldovan broadcaster TeleRadio-Moldova (TRM) organised the national final O melodie pentru Europa 2011 in order to select the Moldovan entry for the 2011 contest in Düsseldorf, Germany. 98 entries competed to represent Moldova in Düsseldorf, with 25 being shortlisted to participate in the televised national final which took place on 26 February 2011 after auditioning in front of a jury panel. "So Lucky" performed by Zdob şi Zdub emerged as the winner after gaining the most points following the combination of votes from a jury panel and a public televote.