How many number one songs does kelly clarkson have?

As of my last knowledge update, on January 2022, Kelly Clarkson had released eight studio albums, two compilation albums, and sixteen singles. Among these, she had three number-one singles on the Billboard Hot 100 chart in the United States:

1. "A Moment Like This" (2002)

2. "My Life Would Suck Without You" (2009)

3. "Stronger (What Doesn't Kill You)" (2011)

Please note that there might have been new releases or chart updates since then, so it's advisable to refer to more recent sources for the latest information on Kelly Clarkson's chart successes.