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She called it!

When asked last year about the gender of her first baby, Kelly Clarkson said she just knew it would be a girl.

"I'm totally gonna have a girl. I'm manifesting it!" she told Parade Magazine for its November issue.

Today, she made it official.

"We just found out we're having a girl officially!" the Grammy winner tweeted. "I knew it! Only a girl could cause this much drama with all this vomiting ha!"

Read: Kelly Clarkson Pregnant with First Child

The "American Idol" winner announced the pregnancy on Nov. 19, tweeting ""I'm pregnant!!! Brandon and I are so excited! Best early Christmas present ever :)"

This came a month after Clarkson married Brandon Blackstock in Tennessee at a small ceremony with Blackstock's two children from a previous relationship - Savannah, 12, and Seth, 6 - present.

Related: Kelly Clarkson Married Brandon Blackstock

Before the wedding in October, Clarkson told ABC News just how ready she was to expand her new family with a baby of her own.

"Like soon! Brandon, he's a great dad and we wanted to make sure it's cool with [his kids], but they are really pumped about it," she said. "We actually, probably, want two more, and he's got two, so four total. [The oldest] will be in her teens, so that's kind of like a live-in baby sitter."