What a beautiful and touching scene! While I don’t have specific details on such a performance, your description brings it to life vividly. The thought of Simon Cowell, known for his tough exterior, sharing a heartfelt musical moment with his son is truly heartwarming. It offers a rare glimpse into a softer, more personal side of him, underscoring the joy that family and music can create together.

If this moment indeed took place, it surely would have been unforgettable and inspiring for everyone in the audience. Music has a unique ability to connect people, and this scenario perfectly captures that powerful bond.