Kelly Clarkson 'Definitely' Working on Children's Book for Son

The singer added, "But I haven't thought of it yet!"

— -- After Kelly Clarkson penned her first children's book, "River Rose and the Magical Lullaby," inspired by her first child, daughter River Rose, she's already thinking about children's book No. 2. This time, it will be inspired by her second child, Remington, whom she welcomed back in April.

"I definitely have something in the works for Remy B," Clarkson told ABC News, "but I haven’t thought of it yet!"

As for "River Rose and the Magical Lullaby," Clarkson said when writing the book, she "didn't really think about it too much" -- she just set down the stories she told River. Now that they're an actual book, though, River loves hearing it read to her ... maybe a little too much.

"She loves books. That’s our nighttime thing that we do every night together," Clarkson said.

"Magical Lullaby" is about a trip to the zoo and, said Clarkson, "The carousel is her favorite thing, and all the animals ... she loves animals. She’s 2, it’s like the perfect age ... so I have to read certain pages 1,000 times!"

She laughed, "We’ve gotten through the actual whole book, I think, three times."