Victoria Beckham and family celebrate Cruz's 14th birthday with guitar-shaped cake and sweet social media tributes

Victoria Beckham has shared a sweet video of Harper wishing her big brother Cruz a happy birthday as they celebrated his special day.

The fashion designer showed off Cruz’s guitar-shaped cake for his 14th birthday while Harper, seven, read out the accompanying message.

Victoria also wished her teenage son a happy birthday, telling fans she “couldn’t believe” he was growing up.

The former Spice Girl posted a selfie with Cruz alongside the caption: “I can’t believe you are 14 today!!! I love you so so much xxx Happy Birthday Cruz xx.”

David, who married Victoria in 1999, also paid tribute to his “amazing” youngest son, sharing a photo of the two on the water.

The footballer wrote: “Happy birthday to my big boy... The most amazing character and smile.. I love you little man @cruzbeckham.”

But it was Cruz’s eldest sibling Brooklyn, 19, who had the best birthday tribute as he dug out a throwback snap to share with fans.

“Happy 14th birthday to my awesome brother Cruz. Love you very much,” Brooklyn wrote alongside a picture of Cruz in a Manchester United shirt and holding a football.

Earlier in February, the superstar family – which also includes 16-year-old Romeo - celebrated Cruz’s then-upcoming birthday with an ice-skating themed bash.

Harper surprised her brother with a giant cookie, iced with a birthday wish, before the family went skating in Queens to celebrate.

The Beckham couple are celebrating 20 years of marriage this year, with Victoria recently opening up about their plans to keep it “low key” .

“David is such a great husband, such a great dad and the most incredible business partner that anybody could ever want,” she told Entertainment Tonight. “He really supports me in what I do.

“I don’t think [we’ll do anything big]. We’ll probably just celebrate with the kids.”