Sharing a video montage of treasured childhood memories, David wrote: “Happy 21st birthday to my little boy.”
“The proudest thing that I am of you is the person and man that you have become… kind, considerate and fiercely loyal to your family.”
Last month, Brooklyn Beckham, 26, publicly cut ties with his family, labelling his parents as controlling, and accusing them of trying “endlessly” to sabotage his relationship and wedding to wife Nicola Peltz, 31.
The online chef said his parents’ obsession with keeping up appearances left him with “overwhelming anxiety”, which has “disappeared” since moving to America to live with his heiress wife’s family.
“Brand Beckham comes first,” he said, adding that his family prioritised “public promotion and endorsements above all else”.
He continued, expressing his desire for “peace, privacy and happiness for us and our future family”.
Cruz appeared to extend an olive branch to Brooklyn in an Instagram post last week.
The singer shared poignant childhood photos of the siblings set to the tune of Billy Joel’s The River of Dreams, which includes the lyrics “something sacred I lost”.
Eagle-eyed fans noted Brooklyn has kept his tattoos in honour of his siblings, while covering up one dedicated to his dad.
He reportedly covered the word Dad, which had been written across an anchor on his right upper arm.
Cruz Beckham posted this throwback photo featuring his brother Brooklyn to social media. Photo / @cruzbeckham
The Sun reported the Beckhams minus Brooklyn also celebrated Cruz’s birthday with a musical-themed event earlier last week at the Maine Mayfair club in London.
Headlining the party was Beatles tribute band The Bootleg Beatles, whom Cruz joined on stage to play a guitar solo to Something.
He also took to the stage with his band, The Breakers, who are set to embark on their first tour this week.
The retro indie rock act’s For Your Love tour will play 13 dates across Europe over the next month.