She admitted that she accidentally told her 4-year-old girl, River Rose, that Elsa and Anna weren't real.
Clarkson accidentally told her little girl that Elsa and Anna from Frozen aren't real people.
That's world-ending news to a 4-year old!
It happened because Clarkson was trying to explain how she voiced a character in the upcoming animated film Ugly Dolls.
Clarkson told ET, "I pretty much crushed her dreams. I didn't really realize what I was doing. I was explaining to her, because she was confused, and I said, 'It's my voice. Like, you know, like how Elsa and Anna, there's a person that plays Elsa and Anna?' And I didn't get what I was doing!"