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Kelly Clarkson Radio

If you didn't already think that Kelly Clarkson was the most down-to-earth human ever, then you will after watching this. 

Kelly just released her new single, "Heartbeat Song," and was on a mission to find her biggest fans. So Nashville radio station 107.5 The River helped Kelly narrow it down to three super fans and hooked them up to heart rate monitors in the studio. 

The fans had no idea that -- as their own heartbeat was being monitored -- Kelly Clarkson was going to come surprise them. You can now see why Kelly Clarkson is one of our favorite celebrities ever!

Watch Kelly Clarkson surprise her fans below! 

Listen to Kelly Clarkson's new single "Heartbeat Song" below: