Alucinar literally means "to hallucinate," but in colloquial Spanish, especially in Spain and some parts of Latin America, it's often used to mean "to be amazed," "to be blown away," or "to be incredibly impressed by something or someone."
In this song, Sabino uses it to describe how a particular woman at the disco made him feel: "Hubo una en especial que me hizo alucinar" (There was one in particular that blew me away). It perfectly captures the intense and captivating impression she made on him, making it a memorable and engaging word.
Sabino's "Yin Yang" is a super fun and relatable song about finding unexpected connection! Our narrator, who usually doesn't even like to party, ends up at a club one weekend and has such a good time he stays until morning. He meets a girl who tells him she "Vengo sola, yo solo vine a bailar" [I came alone, I just came to dance], and he's totally captivated. He realizes they're like the Yin and Yang – complete opposites who just click.
He's a guy who talks about Space Jam and Back to the Future, while she's into reggaeton and thinks he's talking about Bad Bunny when he mentions Bugs Bunny! He doesn't have a steady job and doesn't worry about it, and he generally doesn't go out. She, on the other hand, loves going to the disco where they play reggaeton. Despite all their differences, they just work, proving that sometimes, opposites really do attract! It's a sweet, funny take on finding your perfect match in the most unexpected places.