"Beautiful Mess" is a song performed by Bulgarian-Russian-Kazakh singer Kristian Kostov. The song was released as a digital download on 13 March 2017 through Virginia Records. The song represented Bulgaria in the Eurovision Song Contest 2017 in Kyiv, Ukraine. Beautiful Mess was performed as Kostov's first song on Singer 2019.

Bulgaria participated in the Eurovision Song Contest 2017 with the song "Beautiful Mess" written by Borislav Milanov, Sebastian Arman, Joacim Bo Persson, Alex Omar and Alexander V. Blay. The song was performed by Kristian Kostov. On 13 March 2017, the Bulgarian broadcaster Bulgarian National Television (BNT) announced that Kristian Kostov had been selected to compete at the 2017 contest in Kyiv, Ukraine. The song that Kostov competed with, "Beautiful Mess", was also internally selected and was presented to the public on the same day.