Jack Keating made his first appearance since becoming a dad at new grandad Ronan Keating's 46th birthday bash.
Jack, 23, stepped out of the shadows of his famous singer dad last summer when he appeared in the eighth series of popular ITV2 reality dating show Love Island as one of the bombshells in Casa Amor.
Despite looking for love in the Majorcan villa eight months, he did not recouple with any of the Islanders as he was sent packing back back to the UK.
But it is not all doom and gloom for Jack after he announced the arrival of his first child - a baby girl - on Thursday, March 9.
Sharing a black and white photo of himself holding his daughter on Instagram, Jack wrote: "Welcome to the world my little [princess emoji]". He didn't share the name of the newborn in the post.
Ronan Keating’s son says Love Island quizzed him on his dark sexual fantasiesGrandad Ronan and his Love Island cast members were among many to send their congratulations on the happy news.
The Boyzone singer replied: "Little Cutie," while fellow Islander Paige Thorne commented: "Congratulations hunny!!!"
Luca Bish, who finished as runner-up alongside Michael Owen's daughter Gemma, replied: "Congratulations brother," and former host of the ITV2 show Laura Whitmore sent a love heart emoji.
Jack may have recently become a new dad but it did not stop him enjoying spending time with his family for Ronan's recent 46th birthday.
The reality star joined his family at The Aubrey in London, where they were joined by the likes of Gary Barlow and his wife, former Dragons' Den star Kelly Hoppen and social Tamara Beckwith for the swanky occasion.
Jack looked smart in an unbuttoned beige shirt, which had a white t-shirt underneath, and paired this with black jeans and black Nike trainers as she was snapped getting a taxi home.
Ronan oozed style in his blue blazer and grey trouser combination while wife Storm looked stunning in her white jumpsuit.
Following the news of Jack secretly welcoming a child earlier this week, fans tried to work who the mother of the newborn was.
The former Love Island bombshell is believed to have welcomed his daughter with the stunning artist Keely Iqbal.
Keely works as an artist designing custom trainer designs and greeting cards and she kept her 12.9k Instagram fans updated throughout her pregnancy by sharing various bump snaps.
Are you fed up of nepo babies going on Love Island? Vote in our pollShe describes herself as 'Mummy. Artist• Sneakerhead' on her business' Instagram profile.