Kelly posted the video to Facebook and captioned: 'This is my daughter at her school Christmas concert. She brought the house down. See if you can guess which one she is.'
How cute is that!
Speaking exclusively to Yahoo Be, Kelly revealed that Lucy's performance was definitely 'not a surprise.'
'She has always been comfortable on stage,' Kelly explained. 'We did not know she was doing anything other than singing with her class. She actually did not even want to go to this show because she had to miss a holiday gift exchange at her dance studio.'
Kelly has since gone on to send the clip to shows like Ellen Degeneres. We don't think this little star's light is going off anytime soon!