Results: Carrie Underwood Serenades/Pranks Boot Shoppers

A handful of shoppers recently experienced just that when they heard Carrie Underwood singing over a store speaker — except in their case, she was literally creating lyrics for them. Are you a fan of Carrie Underwood?

Although Underwood won "American Idol" and became a mega-star, she's never taken herself too seriously. That's one of the reasons she's so great! So despite her busy schedule as the host of this year's Country Music Awards in Nashville, Tennessee, she gladly made time to team up with "Jimmy Kimmel Live" to pull off an incredible prank. Do you like when celebrities take time out of their busy schedules to interact with people and have fun?

Kimmel's crew set up a camera in the back room of a nearby boot store so Underwood could see the customers in the main space. As people appeared and started browsing, Underwood sang to the tune of famous songs (including her own), only she changed the words to fit the shoppers. Have you seen some funny pranks that Jimmy Kimmel or any other night show host has set up?

As soon as the unsuspecting people realized the lines were about them, they looked curiously around, wondering where this mysterious musician could be. But Underwood didn't reveal herself that easily! Instead, she kept going until they were laughing and following her musical instructions to dance and high five. If you were asked to dance in a boot store to get free boots (from someone over the speaker system), would you?

Only then did she emerge from the back, holding a pair of cowboy boots for each of her fans. Many of them were completely floored! They must have thought there was someone who could imitate Underwood nearby instead of the real deal. Would you accept a pair of free cowboy boots from Carrie Underwood?