Transforming the Grammy stage into an epic showdown against division, Tracy Chapman and Luke Combs came together for a duet that was as unexpected as it was awesome. On the surface: Chapman, known for her powerful songs about justice and equality, joined forces with Combs, a country music star, to sing “Fast Car.” But it wasn’t just another performance. Instead, it was a declaration: Despite all our differences, there’s something special that can unite us all.