O.Torvald is a Ukrainian rock band. It was formed in 2005 in Poltava, Ukraine. Its debut album O.Torvald was recorded in 2008. O.Torvald took part in festivals such as GBOB, Chervona Ruta, Tavria games, Prosto Rock, Zakhid, Krashche Misto UA, Ekolomyja and Global Gathering. They represented Ukraine in the Eurovision Song Contest 2017 with the song "Time" finishing in 24th place. In 2018, the group moved to Poland, their activity in cultural life decreased somewhat. Although several songs and clips were released during this time.

Ukraine participated in the Eurovision Song Contest 2017 with the song "Time" written by Yevhen Halych and Yevhen Kamenchuk. The song was performed by the band O.Torvald. In addition to participating in the contest, the Ukrainian broadcaster National Television Company of Ukraine (NTU) also hosted the Eurovision Song Contest after winning the competition in 2016 with the song "1944" performed by Jamala. NTU organised a national final in collaboration with commercial broadcaster STB in order to select the Ukrainian entry for the 2017 contest in Kyiv. The national selection consisted of three semi-finals, held on 4, 11 and 18 February 2017, and a final, held on 25 February 2017; eight entries competed in each semi-final with the top two from each semi-final advancing to the final. In the final, "Time" performed by O.Torvald was selected as the winner following the combination of votes from a three-member jury panel and a public televote.