My dirty little secret

I am going to let you in on a secret. 
First, it's no big secret that  when I am leading the music in Primary, I forget the words.  A lot.  I know the words, I just blank out when I am in front of all those people! 
However, sometimes I like to stop singing to see if the children know the words.  I will stop and listen to them singing.
Except...
...that is usually because I have forgotten the words again, and I am trying to cover.  I am so ashamed! 
And now you all know.