Kelly Clarkson gives birth to a son

Singer Kelly Clarkson has given birth to her second child.

The pop star announced via Twitter on Thursday (14Apr16) that she delivered her baby boy on Tuesday (12Apr16). Kelly and husband Brandon Blackstock have named their son Remington.

"Our little baby boy has arrived!! Remington Alexander Blackstock was born 4/12/16 & he is healthy & we couldn't be happier or more in love!" she tweeted.

Kelly revealed in August last year (15) that she was expecting her second child with Brandon, during an emotional performance at L.A.'s Staples Center.

Kelly and Brandon tied the knot in Tennessee in October 2013 after two years of dating, and welcomed daughter River Rose in June 2014.

Brandon, 39, is also dad of daughter Savannah, 14, and son Seth, 8, from a previous relationship.

A heavily pregnant Kelly, 33, appeared on TV just last week, in a taped performance for the final of American Idol, the TV talent show which launched her career in music.

She was warned by doctors earlier this year (16) not to attend both an Idol show in February (16) and the Grammys as she had been experiencing a difficult pregnancy, so the Since U Been Gone singer opted for the TV talent show over music's big night. She then recorded a second performance which aired during the programme's big finale.

Kelly also previously admitted this will be the last time she's going through the pregnancy process since the journey has not been an easy one for her.

"Oh, no, we are done," the pop star told Australia's KIIS FM radio station. "Oh good Lord, yes, I can't be pregnant again. This will be our number four total, so we're good... Honestly, the first one was really rough, and I was like, 'Oh, it can't happen again,' and no, it happened, like, way worse this time."

Kelly revealed she suffered from hyperemesis gravidarum, a condition which results in severe nausea, vomiting, weight loss and dehydration.