Cruz Beckham has joined Instagram

Cruz - who was born in Madrid, Spain - has already posted five times in less than 24 hours, including one of him and his brothers posing with music star Calvin Harris at the recent Capital Jingle Bell Ball in London.

On the second post, Cruz sings the chorus of the 2005 hit 'Hopeful' by US rapper Twista, which features vocals from Faith Evans.

The video first appeared on Victoria's Instagram earlier this year and comes amid rumours Cruz is poised to launch a pop star after he signed with Scooter Braun, who also manages Justin Bieber and Ariana Grande.

On another of his posts, Cruz confirms he has something "exciting to share" with his fans next week, thereby heightening speculation about a potential career as a pop star.

However, Cruz's appearance on the photo-sharing website could spark controversy, because Instagram requires users to be at least 13 years old before they can create an account.

The guidelines on Instagram explain: "If your child is younger than 13 and created an account on Instagram, you can show them how to delete their account."

Earlier this year, TV personality Katie Price hit out at Instagram's decision to delete the pages of two of her children, both of whom were too young to manage their own accounts.

Junior, 11, and Princess, nine, had their accounts deactivated amid complaints from eagle-eyed fans of the Brit, who subsequently insisted she was responsible for running their Instagram pages.

She said: "They've been taken down again because people keep complaining. I'm running the accounts, all of Junior's friends have Instagram.

"He's sad because he feels left out because pathetic people keep reporting his profile. Why do they care? What's he doing that's so offensive to them?"