The thing about holiness is, if we don't meet God's required standards, are we going to see The King of Kings with joy or with pain?
We Shall See The King is sung with anticipation. It is announced and declared to both those who know and those who do not know. The people who know The King intimately are singing with great joy for they have already met Him: on their knees. The people who know not The King sing not at all.
Many think because they are off-key or tone deaf, they should not be singing. You are wrong. The Word of God says to make a joyful NOISE. Nowhere does it say we have to be pitch perfect and tuned up to sing songs of praise to God and Jesus Christ.
Psalm 98:4 Make a joyful noise unto the LORD, all the earth: make a loud noise, and rejoice, and sing praise.