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One Direction's Louis Tomlinson is one happy new dad! The boybander and Briana Jungwirth welcomed a baby boy on Jan. 22 and the proud papa took to Twitter to express his delight.

On Jan. 23, the cute crooner tweeted a confirmation to his legion of fans, writing, "I'm pleased to say my baby son was born yesterday :) He is healthy and pretty amazing :) I'm very happy!!"

Before the news was official, Louis' former stepfather, Mark Tomlinson, sparked rumors that the baby had arrived when he tweeted on, "Is that the patter of tiny feet?" It turns out it was! Hours later the 24-year-old confirmed to People that he had a baby boy.

In July 2015, it was reported that the singer was expecting a child with the LA-based stylist, with whom he had a brief liaison.

"Louis is happy and very excited about becoming a dad, and he thinks Briana will be an amazing mother," a mutual friend told People.

"Obviously it's a very exciting time. I'm buzzing," Louis later revealed while speaking to "Good Morning America."

The pair met in 2015 and dated briefly in May after Louis split from longtime love, Eleanor Calder.