Eres tú

"Eres tú" (Spanish pronunciation: [ˈeɾes ˈtu]; "It's You") is a song recorded by Spanish band Mocedades, written by Juan Carlos Calderón. It represented Spain in the Eurovision Song Contest 1973 held in Luxembourg placing second which was followed by a global success. It was also Spain's highest scoring entry at the time, a record that stood nearly 50 years until 2022, when Chanel finished in 3rd place with her song SloMo.

It is one of the few musical acts from Spain to have scored a top ten hit in the United States, being the only one sung entirely in Spanish. In 2005, it was one of fourteen songs chosen to compete in Congratulations: 50 Years of the Eurovision Song Contest placing eleventh. In 2013, it was inducted into the Latin Grammy Hall of Fame. In 2015, "Eres tú" ranked #47 on Billboard's 50 Greatest Latin Songs of All Time.

Mocedades also released the song in English, French, German, Italian, and Basque versions. The song was subsequently covered many times and released by different singers in different languages and genres.