 Some of them aren't moving their mouths. Well, you could say, well, I'm not a singer. Listen, I'm not a singer. But I'm telling you, there is something very freeing, very releasing, very expressive of what God has done in our hearts when we actually open our mouths, open our lips, and sing to the Lord. Psalm 40, verse 3, He has put a new song in my mouth, a hymn of praise to our God.