Article continues below advertisementBritney Spears shared a sweet video recorded by her youngest son, Jayden James Federline.In the since-deleted upload from Friday, September 26, the 19-year-old held a phone as the singer showed off her long, pale pink frock with a smile spread across her face."Look at my dress," the mom-of-two said.Article continues below advertisementBritney Spears' Post With Her Son JaydenSource: @britneyspears/instagramJayden James Federline told mom Britney Spears she was 'wearing a pretty dress' in an Instagram video.