Kelly Clarkson has given birth to a baby girl.

The American songstress announced the happy news on Twitter, revealing the name of her new-born daughter to her 9.6million followers.

"Our baby girl River Rose Blackstock arrived on June 12th! Thank you everyone for all of your well wishes! Brandon and I are on cloud 9!! :) (sic),” Kelly posted.

It’s her first child with husband Brandon Blackstock, who’s the son of Kelly’s manager Narvel Blackstock. Brandon has children Seth and Savannah from his previous marriage.

The couple, who tied the knot last year, announced news of the pregnancy in November also choosing the micro-blogging site to share the update.

“I'm pregnant!!! Brandon and I are so excited! Best early Christmas present ever (sic),” Kelly wrote excitedly.
Kelly, 32, has never been shy about her desire to have a baby.

"Everybody keeps saying, 'What do you want for Christmas?' And I'm like, 'I want to be pregnant.' I want babies, yep! I do,” she previously radio host Sean Valentine on his show Valentine In The Morning.

Kelly also openly admitted that it’s her role as stepmom to Seth and Savannah that convinced her she too wanted a family.

"I honestly never ever used to want to want kids because I'm kind of selfish with my career, but going to soccer games with Seth and doing homework with Savannah -- I just really love it y'all.

“It's so cool. It sounds so cheesy but it's such a bigger point to life. I really lucked out with the whole kid situation. They're amazing,” she gushed.