Kelly Clarkson has announced that she is pregnant with her first child.

The singer tweeted yesterday (November 19) that she and her husband Brandon Blackstock, who married last month, are excited to welcome their first child together.

Clarkson wrote: "I'm pregnant!!! Brandon and I are so excited! Best early Christmas present ever :)"

The star sparked speculation that she could be pregnant after appearing on The Tonight Show with Jay Leno earlier this month.

On the subject of having a baby, she said: "We are not announcing anything right now. We're not, no." 

Clarkson and music manager Blackstock wed on October 20 at a luxury resort in the Smoky Mountains in Tennessee.