"Lo Vas a Olvidar" is the first single released in 2021 by
Billie Eilish, and it is also her first collaboration with Spanish singer
Rosalía. This song is part of the soundtrack of the successful television series "Euphoria," from the North American network HBO.
This is the first time that the Californian star,
Billie, sings in Spanish. Since the announcement of the collaboration in 2019,
Rosalía pointed out that only the verses by
Billie Eilish remained to finalize the production of the song.
The official announcement was made on January 19, 2021, through different publications on both artist's social networks, and the Euphoria advertising page, where the song can be heard in the background.