Becks' boys sing along US national anthem at his football match

London, Mar 12 (ANI): Although none of David Beckham's sons were born in the US, yet the three of them were spotted belting out the American national anthem at their father's football game in California on Saturday.

Brooklyn, 13, Romeo, nine, and six-year-old Cruz were in the crowd to support David, who plays for LA Galaxy.

As all three boys placed their right hands on their chests, they sported quite serious-looking faces, the Daily Mail reported.

The kids were dressed casually for the event with Brooklyn and Romeo both opting to wear hoodies.

Their younger brother sported a grey stripy zip-up top with a printed T-shirt and copied Brooklyn in the hat department.

The eldest of the Beckham boys, who recently celebrated his 13th birthday, apparently flaunted one of his presents.

As he snacked on a biscuit, the teenager clutched an iPhone that he was no doubt clicking pictures with. (ANI)