After widespread outrage among One Directioners and much speculation, Louis Tomlinson has tweeted that his baby son was born on Friday.
Taking to Twitter, the One Direction singer said: "I'm pleased to say my baby son was born yesterday :)
"He is healthy and pretty amazing :) I'm very happy!!"
Last year reports came out about how Louis was having a baby with US stylist Briana Jungwirth.
There was never any official press statement but Louis did confirm the news of his impending fatherhood during an awkward interview on US television.
When he was congratulated by the host, he replied: "Thank you, yeah, erm, obviously it's a very exciting time, so, err, I'm buzzing, thank you."
Louis is the first member of One Direction to become a father although there's no word on a name for his first child just yet.
Harry Styles cryptically congratulated his bandmate, tweeting: "flowers all round"
Congratulations to Louis and Briana! And cue the wrath of the One Directioners...