Madame Monsieur are a French duo consisting of vocalist Émilie Satt and producer Jean-Karl Lucas. They first met in 2008 and formed the duo in 2013 before releasing their debut album in 2016.
They won the right to represent their home country at the Eurovision Song Contest 2018 in Lisbon with their song "Mercy". They directly qualified for the final due to the country's status as a "Big Five" nation where they finished in 13th place with 173 points.
They co-wrote the song "Roi", which was performed by Bilal Hassani in the 2019 Contest in Tel Aviv.