David Beckham celebrates son Cruz's 17th birthday with video revealing his musical skills

David Beckham shared a clip of his third son Cruz singing along to a Justin Bieber song. (Getty Images)
David Beckham shared a clip of his third son Cruz singing along to a Justin Bieber song. (Getty Images)

His mother may be a famous pop star, but Cruz Beckham has shown off some musical skills of his own.

The teenage son of ex-Spice Girl Victoria Beckham can be seen in a video – shared to Instagram by father David to mark his son's 17th birthday – singing and playing the guitar along to the Justin Bieber song Love Yourself.

Captioning the clip, the former footballer wrote: "Happy birthday big boy x We love you and that cheeky personality. Keep being you."

The post, which has been viewed more a million times, left many fans suggesting he had a possible pop career ahead of him.

One person wrote: "Beautiful voice and he looks just like his mum. He’s going to be a wonderful singer someday."

Another commented: "That’s brilliant! You have some talent there!"

A third noted: "Watch out Bieber."

Cruz's mother Victoria also marked her son's birthday on Instagram with a jokey photo of the pair together.

She wrote: "Happy birthday Cruzie!! We love u so much!!!! So many kisses!! @cruzbeckham."

Watch: Cruz Beckham performs part of his debut single live back in 2017

On her Instagram Stories, Victoria revealed that the birthday boy had tucked into a Billie Eilish-themed multi-tiered cake while on a ski trip with his family.

Over on his own Instagram account, Cruz shared a photo of himself snowboarding, with the teasing caption: "Dad must trust me."

The Beckhams are also parents to Brooklyn, 22; Romeo, 19; and Harper, 10.

Watch: Celebrities who look eerily like their children