Alboroto translates to "uproar," "commotion," or "ruckus." It's a wonderfully energetic and slightly chaotic word that you don't usually hear in a romantic ballad.
In the song, Camilo sings that when they get married, "se va a armar un alboroto" (it's going to cause an uproar). He uses this playful term to express that their wedding won't be a quiet affair, but a massive, joyous, and loud celebration that will get everyone talking. It's a unique way to describe the incredible excitement of marrying the love of his life.
Colombian singer Camilo wrote this track about the exact dizzying moment you walk down the aisle, completely in disbelief that the person of your dreams is actually marrying you. He describes meeting his partner and instantly feeling like the moon: "Sin ambición ninguna / Más que dar vueltas y vueltas / Alrededor de ti" ("With no ambition at all / Other than spinning around and around / Around you"). Suddenly, all those cheesy love tracks on the radio make total sense, and he dreams of a simple future: "Una casa contigo y llenarla de hijos" ("A house with you and filling it with children"). He even jokes that God must have been looking the other way when handing her over ("O Dios cometió un error / Porque andaba distraído" ["Or God made a mistake / Because He was distracted"]).
Language-wise, Camilo keeps things conversational and warm. When he sings "Voy pa' la iglesia" ("I'm going to the church"), he clips para down to pa', which is how native speakers casually drop syllables in everyday speech. He also throws in some wonderfully silly, everyday comparisons, calling his bride "el control remoto que me enciende los sentidos" ("the remote control that turns on my senses"). He knows people might call them rushed or obsessed, but he shrugs off the gossip: "Cuando tú y yo nos casemos se va a armar un alboroto" ("When you and I get married, it's going to cause a commotion"). An alboroto is a big, noisy fuss—and he simply does not care, because his only plan is to swear "amor eterno" ("eternal love") right at the altar.