[1] Between 17 October and 26 December 1970, Televisión Española (TVE) produced a musical competition –titled Pasaporte a Dublín [es]– to select its performer for the 16th edition of the Eurovision Song Contest.
[2] She recorded it in five languages: Spanish, English –as "Tomorrow I'm Coming Your Way"–, French –as "Un monde plus grand et plus beau"–, German –as "Wir glauben an morgen"–, and Italian –as "Un mondo nuovo"–.
[1] On 3 April 1971, the Eurovision Song Contest was held at the Gaiety Theatre in Dublin hosted by Radio Telefís Éireann (RTÉ), and broadcast live throughout the continent.
Waldo de los Ríos conducted the event's live orchestra in the performance of the Spanish entry.
[6] Karina starred in the 1972 film En un mundo nuevo, which was inspired by her participation at the contest and which shows real footage of her performance there.