River Rose and Remington Alexander joined their mom, Kelly Clarkson on stage at the Bakkt Theater in Las Vegas, NV. They had joined her before on previous shows but this was the final performance of her current residency so it took on a special meaning for everyone. They sang Remington Alexander's favorite tune which happened to be one of his mom's biggest hit, "The Heartbeat Song." It was a cute moment that I was hoping to catch. One thing for sure, Kelly Clarkson has two little stars destined for the big time.