She is one adorable little tot, isn't she?
In the 'Ordinary People' singer's latest Instagram post, Luna (now one week old) can be seen staring into space. Just look at her little button nose and her full head of hair!
John didn't add a caption alongside his photo, but that didn't stop the star from receiving over 300,000 likes on his picture in 12 hours and nearly 13,000 comments. Many couldn't resist gushing about his baby girl.
One fan commented: "She's perfect!!" While another pointed out that little Luna is already looking like her daddy. They said: "She looks like you!!!! Omgggggg she's [a] cutie."
John's snap comes after his wife and Luna's mum Chrissy Teigen first introduced their daughter to social media. She shared the very first picture of Luna on Instagram, but had hid her face from view while cradling Luna in her arms.
Alongside it, Chrissy had sweetly said: "Hi my Lulu."
Chrissy gave birth to Luna on 14 April last week, although she and John didn't announce her arrival until Monday 18 April.
John had tweeted: "Our new love is here! Luna Simone Stephens. Born on Thursday, the 14th. We couldn't be happier!"
Chrissy, meanwhile, revealed Luna's birth weight of 6lb 11oz and said: "She's here! Luna Simone Stephens, we are so in love with you! And sleepy. Very sleepy."
The couple first announced they were expecting in September last year. Chrissy had told fans she and John were "so excited" to finally be embarking on parenthood, after struggling to conceive in the past.
Their baby joy comes over two years after Chrissy and John married in September 2013.
For exclusive competitions and amazing prizes visit Reveal's Facebook page NOW!