DuckTales Movie Theme - Spanish

Well, it was hard to get it, but I got. For my surprise, it's a well-known theme for us. The most strange thing is about the notation of dub studio: Mexico, although I downloaded from a forum saying it was in Castillan. Also, we have the name in the credits "Tio Gillito" (Scrooge, in Spain). So, I'm confused. Also, after these credits, there comes the movie instrumental, followed by the DuckTales theme instrumental. Lyrics: Tienen para ti un pastel de cumpleaños Cantarás con ellos en la cua cua-lengua Si te diviertes, vuelve mañana ¡Pato, uoh-oh! Cada día nuevos solo el pato, uoh-oh. Patoaventuras las llamamos ¡Pato, uoh-oh!