Soooooo...I'm sorry. I was coming home after preaching and I had a tie in my hand and it got me thinking about wearing it on my head and that got me thinking about 60's music and so here we go...
Try discussing this with your students, "What are ways we can rejoice in God other than singing?"
As an aside, the words in the song in parentheses are not part of the verse. They were added to make the song work.