Interruptions Object Lesson
Tell the kids you are going to play a game and the child who can answer the question gets to play.
Have the sound person turn the music up.
Speaking softer than the music, and ask a question about the Bible lesson.
When the kids say they can't hear talk to them about the "noise" in their lives and how it keeps them from hearing what God wants them to do. (make sure the music person turns the sound down to let the kids hear the teaching of the object lesson). Now get ready to ask the kids a real question so they can play the game.