Una poca de gracia
A few more lines from later in the song:
Yo no soy marinero
Yo no soy marinero
Soy capitan, soy capitan, soy capitan
Although his parents were Mexican-American, this artist was raised to speak English. He had to be coached on how to sing every syllable in this song to make it sound believable. Most critics said that he did a more than credible job.
And this hint will probably give it all away but, what the hell, I like to keep the thread moving if I can:
The artist who sang this song was only 17 years old when he died in a small plane crash that also killed two other promising rock stars on February 3, 1959. Years later, another singer/songwriter would call that date "the day the music died."