ByeAlex represented Hungary with the song "Kedvesem", which qualified from the second semi-final of the competition and finished in 10th place in the final, scoring 84 points.

Thirty entries competed in the competition that consisted of six shows which commenced on 2 February 2013 and concluded with an eight-song final on 2 March 2013.

The six shows took place at MTVA studios in Budapest and were hosted by Gábor Gundel-Takács and Éva Novodomszky, with Márton Buda conducting backstage interviews.

The semi-finals, held on 23 and 24 February 2013 during A Dal-hétvége (A Dal-weekend), each featured nine entries with four advancing to the final from each show.

The judging panel participated in each show by providing feedback to the competing artists and selecting entries to advance in the competition.

The panel consisted of:[2] Artists and composers were able to submit their applications and entries for the competition between 24 October 2012 and 31 December 2012.

Artists were permitted to collaborate with international composers and submit songs in English, however, in such cases a translation of the lyrics to Hungarian were required.

The songs "Ha virág lennék" and "Anyáddal", written by Edina Mókus Szirtes and Balázs Horváth respectively, and to have been performed by Edina Mókus Szirtes and The Hated Tomorrow respectively, were disqualified on 11 January 2013 as the songs were presented before 1 September 2012, breaching the rules of the competition.

[19] In the second semifinal, the producers of the show decided that Hungary would perform 12th, following Armenia and preceding Norway.

[20] On stage, ByeAlex was joined by backing vocalist Helga Wéber and guitarist Dániel Kővágó.

[22][23] At the second semi-final winners' press conference, Hungary was allocated to perform in the second half of the final.

[27] The national jury that provided 50% of the Hungarian vote in the second semi-final and the final consisted of: Fecó Balázs, Erzsébet Jeney, Áron Kiss, Viktor Rakonczai, and Magdi Rúzsa.