Cesár Sampson is an Austrian singer and producer. He participated as a producer and backing vocalist for the 2016 and 2017 Bulgarian entries by Poli Genova and Kristian Kostov, with both finishing in 4th place and as runner-up, respectively. He also worked on past entries from F.Y.R. Macedonia and Serbia.
He was selected internally by national broadcaster ORF to represent his home country at the Eurovision Song Contest 2018 in Lisbon, with the song "Nobody but You" revealed two days later. He performed in the first semi final and qualified for the final, where he finished in 3rd place with 342 points, giving the country its best result since Conchita Wurst won the 2014 Contest in Copenhagen.