Watch: Victoria Beckham duets Spice Girls song with son Cruz

At one point, David Beckham, who is filming the video, joins in, singing in a falsetto voice. While Victoria laughs and gets her own phone out to film David filming them, Cruz remains deadly serious, strumming away at his guitar with a frown of concentration. Perhaps the youngest Beckham son is spending more time at home – he was recently banned from driving after being caught speeding twice, in less than two years after passing his test.