One Direction Star Louis Tomlinson Has Become a Dad
Louis, 24, was at the side for the birth, but further details have not been released.
It wasn't long before Twitter timelines began filling up with good wishes for the newborn.
Louis' sister Phoebe tweeted: "Congratulations to my big brother @Louis_Tomlinson & Briana on a beautiful baby boy #BabyTommo #AuntiePheez."
And One Direction bandmate Niall Horan's brother Greg sent a congratulatory tweet to the couple.
He wrote: "Congratulations too my friends Louis and Briana. Beautiful boy. @Louis_Tomlinson. Talk later."
|Briana Shows off baby bump|