Daddy David Beckham shared his favourite picture of four-year-old daughter Harper on Instagram - and we've dug up a few favourites of our own...

Harper Beckham turns four today (seriously, where has the time gone??) and daddy David Beckham has marked the special occasion in the CUTEST way.

Taking to Instagram early this morning, David shared what he revealed was his all-time favourite picture of little Harper, taken when she was just a tiny baby.

The black and white snap shows baby Harper snuggled up on her dad’s chest whilst he wraps a protective arm around her and smoulders into the middle distance (SWOON).

Proud poppa David captioned the picture with a message that made our hearts flutter.

The former footballer wrote: ‘Possibly my favourite picture of Harper of all time… 4 beautiful years with the most amazing little girl… Happy birthday big girl… ‘

Of course, this isn’t the first time that David has melted our hearts when it comes to Harper – he’s been doing that on a regular basis since she first came into the world four years ago.

When he’s not doing everyday daddy duties like spoon feeding her, pushing her on the swings or simply staring adoringly at her whilst carrying her down the street (we can’t even deal), David’s sitting with Harper on the front row at mum Victoria’s fashion show or taking her to a basketball match.

And since he joined Instagram on his 40th birthday earlier this year, we’ve been treated to an intimate look at their adorable daddy-daughter relationship.

The day after his 40th birthday party, David shared a snap of Harper decorating her dad with headbands and bows, captioning it: ‘Someone is trying to make daddy feel pretty today after a heavy night.’ TOO CUTE.

And more recently, David posted a picture of little Harper kicking a football – so perhaps she’s going to follow in her famous daddy’s footsteps?

We’ve revisited all of these too-cute moments and more in the gallery above – so, in honour of Harper’s 4th birthday, click through and relive their best daddy-daughter moments so far.

MORE: David Beckham has got a new tattoo and Harper picked it!

Stephanie Wood