Victoria Beckham has shared a video jokingly telling off husband David Beckham after her interrupted their son Cruz while he is singing.The mum-of-four, who ditched the glam to say goodbye to her daughter Harper in November, recorded her 15 year old son belting out a song. However, the teenager was soon cut off after dad David, 45, joined in on the song in the background, prompting Victoria, 46, to tell him off.