Cuteness overload! The video that proves Harper is a true Belieber

She may only be five-years-old – but Harper Beckham is already bagging some of the hottest gig tickets in town. 

Attending the Justin Bieber concert at London's O2 Arena on Friday – her dotting dad, David, captured the ADORABLE moment she was caught up in the magic of the music. 

Posting a short video to Instagram, little Harper can be seen waving a mobile phone in the air as she sways to Life Is Worth Living – evidently a tune she knows inside out.

She is wearing a pretty white dress, while her super long hair is tied back in her trade-mark plaits. 

Even her older brothers – Brooklyn, 17, Romeo, 13, and Cruz, 11 – came along for the concert; with the Beckham clan sitting in one of the arena's private boxes. Cruz is also said to be a big Justin Bieber fan and no doubt was delighted to attend too. 

Mum Victoria sadly couldn't make it as she is busy with Fashion Week responsibilities.