By Emily Sheridan
What's in a name: David Beckham explains the reasons he and wife Victoria chose Harper Seven's names in a Facebook video
After a week of speculation, David Beckham has finally revealed the reasons behind his newborn daughter Harper Seven's unusual name.
Despite a long-held rumour that his wife Victoria has never read a book, the footballer said they had named their daughter after Harper Lee - the author of Posh's favourite book To Kill A Mockingbird.
In a series of videos posted on his official Facebook page, the LA Galaxy player speaks about his joy as becoming a father for the fourth time.
Dismissing speculation they named Harper Seven off a character from Disney TV show Wizards Of Waverly Place or Harper's Bazaar magazine, David said the name had a literary meaning for them.
He said: 'A lot of thought goes into our children's names and Harper was a name that we've loved for a long time for a couple of reasons.
'One reason is Harper's an old English name which we loved and one of the other reasons was Victoria's favourite book is To Kill A Mockingbird and the author was Harper Lee. It's a very strong, passionate book. That's where Harper came from.'
The revelation that is is Victoria's favourite book may surprise some fans, because it was widely thought she had never read a book.
However in an interview six years ago, she insisted she did read books, but didn't usually get a chance to finish them due to her busy schedule.
The footballer went on to admit her former shirt number 7 while he played for Manchester United and England had also played a strong part in them choosing Seven as a middle name.
'Having a daughter is a whole new thing': Beckham admitted he was getting used to the pink and lilac in the house
He explained: 'And then Seven you know, a lot of people have assumed its just because of my shirt number that I wore for many years and part of it is because I had so much luck around wearing that number, wearing it for England, wearing it for Manchester United.
'It was such an influential number throughout my career and a lucky number... but that wasn't the main reason.
'The other reasons behind Seven was because it symbolises spiritual perfection, the Seven Wonders Of The World, seven colours of the rainbow and in many cultures around the world it's regarded as a lucky number.
'So we love the name, we love Harper Seven. We're very proud of having her in our lives and in our family and it's an amazing time for our family right now.
Blessed: Victoria Beckham shared her joy about becoming a mother to her daughter Harper Seven on her Twitter page
In a second video, the father-of-four admitted he was adjusting to life with a girl in the house after so long with just the couple's three sons Brooklyn, 12, Romeo, eight, and Cruz, six.
He said: 'To have another girl in the family is really incredible. We've got three beautiful healthy boys already and we're so lucky to have that and now to have a beautiful little girl.
'Having a daughter is a whole new thing. Having pink in the house, having lilac in the house... and you have to be a lot more delicate with girls than boys and I'm not used to that so it's a whole new experience.
It's an amazing experience to have that little bundle of joy in your hands, making her little noises and opening their eyes, it really is an incredible moment for us.'
Expanding their family: Victoria and husband David, pictured at the Royal Wedding in April, now have four children
Beckham's online video comes a day after his wife spoke of her joy as becoming a mother to little Harper.
The ex-Spice Girl delivered the 7lbs, 10oz baby at 7:55am on Sunday morning via caesarean section.
She Tweeted: 'Baby Harper is the most beautiful baby girl I have ever seen, I have fallen in love all over again!!!
'We all feel so blessed and the boys love their baby sister so much!!! X VB.'
Harper's birth was announced by her proud husband David on his Facebook page hours after the baby's arrival.
He wrote: 'I am so proud and excited to announce the birth of our daughter Harper Seven Beckham. She weighed a healthy 7lbs 10oz and arrived at 7.55 this morning, here in LA. Victoria is doing really well and her brothers are delighted to have a baby sister.'
Lucky number: David wearing a number 7 Manchester United shirt in 1999 (left) and a 7 England shirt last year