Diferente means 'different', and while it's a common word, its significance in this song is profound and incredibly enticing.
The entire song revolves around the singer's plea to a woman who has been hurt by past relationships. He repeatedly promises, "Te juro que soy diferente" (I swear I am different), trying to convince her to give love another chance. This word is the heart of his argument and the central theme, making it the most impactful and memorable word to draw a learner into the song's narrative.
In "Diferente", Puerto Rican reggaeton singer Jay Wheeler teams up with producer DJ Nelson to make a desperate plea to a woman who has completely checked out of romance. Word on the street is that she refuses to fall in love again: "Que no quieres nada serio / Y que ya no te enamoras" ("That you don't want anything serious / And that you don't fall in love anymore"). She is totally exhausted by bad relationships and refuses to get tied down by empty words, as Jay sings: "Que de promesas ya no va a amarrarse" ("That she won't tie herself down to promises anymore"). Notice how he uses the reflexive verb amarrarse (literally "to tie oneself up") to describe the trap of false commitments.
Instead of backing off, Jay steps up with a classic, stubborn promise: "Te juro que soy diferente" ("I swear to you that I'm different"). It sounds like every smooth line you have ever heard from a guy trying his luck, but he backs it up with genuine empathy by admitting, "Yo también estuve en tu lugar" ("I was in your shoes too"). Backed by Nelson's steady beat, he begs her to ignore gossip, tune out the haters with "Olvida lo que te diga la gente" ("Forget what people tell you"), and take one more risk on him.