Hilarious moment of honesty from T-Pain ... who tells TMZ Sports he doesn't give a DAMN about the Miami Dolphins and only agreed to remix their fight song because they PAID him!!!
Remember, the hip-hop star -- who's from Florida -- made headlines back in 2009 when he was tapped by the Dolphins to rerecord the official fight song.
So, when we saw him at LAX this week ... we had to ask how he felt about the atrocious 0-3 Dolphins squad, which is already being panned as one of the worst teams in NFL history.