Baby's here! Kelly Clarkson has given birth to her second child, a son.

Remington Alexander Blackstock was born on Tuesday (April 12), the singer revealed on Twitter on Thursday (April 14).

"Our little baby boy has arrived!!" Clarkson tweeted. "... he is healthy, and we couldn't be happier or more in love!"

Baby Remington joins big sister River Rose, who was born in June of 2014. Blackstock also has two children from a previous marriage. Clarkson first revealed that she was expecting Baby No. 2 at a mid-August concert at Los Angeles’ Staples Center, after getting emotional while singing “Piece By Piece.”

“I was totally not planning on announcing this, but … I’m totally pregnant,” Clarkson said from stage. ”I’m having a really hard time … I just don’t want you to think I’m on pills or drunk.”

At the time, Clarkson and Blackstock hadn’t even revealed her pregnancy to their extended family.

“I’d like to apologize to my husband. That was not planned. I just didn’t want you to think I was crazy or something,” Clarkson added during the concert. “Honestly, I’m just so hormonal today … I haven’t vomited yet. That is a freakin’ win, y’all.”

In October, they shared that their second child would be a boy. Clarkson and Blackstock met at the 2012 Super Bowl, got engaged later that year and got married in October of 2013.

Country Music's 2016 Babies