How about having the super talented Ed Sheeran, who wrote the song, singing along with them?
Ed joined Zayn, Louis, Niall, Liam and Harry to sing "Little Things" during 1D's sold out MSG concert last night (Ed also had the honor of opening the show).
The result? Of course they make beautiful music together!
Watch Ed Sheeran and One Direction sing "Little Things" in the video below, if you can hear over the screaming and singing along (then check out Ed singing "Little Things" solo at a recent concert--so good.)