Italian is considered the most attractive language in the world as of today. A previous survey, conducted in 2017, unequivocally stated that French was the sexiest language.
The reason lies in the musical characteristics of the language. There are some evolutionary theories that suggest that people find foreign accents and foreign languages attractive - because they offer a more exotic gene pool to breed with. But other researchers explain that in the end it all comes down to cultural bias and the popularity of famous Australian actors such as Chris Hemsworth and Hugh Jackman.