Latvia participated in the Eurovision Song Contest 2018 with the song "Funny Girl" written and performed by Laura Rizzotto. The Latvian broadcaster Latvijas Televīzija (LTV) organized the national final Supernova 2018 in order to select the Latvian entry for the 2018 contest in Lisbon, Portugal. 21 songs were selected to compete in the national final, which consisted of four shows: three semi-finals and a final. In the semi-finals on 3, 10 and 17 February 2018, two entries were selected to advance from each show alongside two wildcards selected by LTV. Eight songs ultimately qualified to compete in the final on 24 February 2018 where a public televote and a four-member jury panel selected "Funny Girl" performed by Laura Rizzotto as the winner.

Laura de Carvalho Rizzotto is a Latvian-Brazilian singer, songwriter, pianist and guitarist. She released her debut studio album Made in Rio in 2011 through Universal Music Brazil, which included the single "Friend in Me". In 2014, she independently released her second studio album Reason to Stay, and independently released the extended play RUBY in 2017.