Romeo Beckham's family showed him love on his birthday, but his brother Brooklyn Beckham was noticeably missing from the festivities. Romeo's dad, David Beckham, kicked off the tributes on Sunday, August 31, posting a throwback photo via Instagram in honor of his son. "Happy 23rd Birthday to my little boy you are kind , humble , polite , hard working and the most special person to everyone we love you so much x," David, 50, wrote, alongside a pic of Romeo as a toddler in a kiddie pool. "Have the most special day HAPPY BIRTHDAY big boy @romeobeckham .