I feel sad when I hear songs about people waking up one day and realising the best days of their life are behind them. That's my greatest fear.
I agree with what PlatedDrake said about songs being unrealistic. What about that "T-Shirt" song by Shontelle, where it says, "sick of this dress and these Jimmy Choos..." etc? Once I remarked to my friends that the woman is basically boasting and complaining at the same time - "my boyfriend just broke up with me, but my shoes are still more expensive than yours."
I can be rather cynical about song lyrics, I love finding inaccuracies, fallacies, and other things that I can make fun of in them.
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'El reloj, no avanza
y yo quiero ir a verte,
La clase, no acaba
y es como un semestre"