Lies are part of childhood. For a child, a lie is an unconscious test to try and understand what happens when they don’t tell the truth. This song is a great way to open a dialog about lying. You are the expert in your family so you’re the one who decides what your rules will be and how you plan to handle a lie, and if like this song.
The song is called
The White Lie Song,” by Zachary Pinkus-Roth

One thing children don’t understand about lying is the fact that trust between parent and child as been disrupted. Instead of punishing for the lie, consider asking the child, “How will you repair my trust?” A child has to think about what they’ve done and how to repair it. No real teaching is done when a child tells a lie and only has to live through a timeout, which will be over in 5 minutes, and then they say, “sorry”.