♪ i'll float on down the river talent can be found in all kinds of places, not on this show. but moving on. consider the case of a young woman passing the time at her job in walmart simply by singing. >> thanks to a customer with an ear for music, this talented cashier is now a youtube sensation. abc's steve osunsami has her story. ♪ i'm proud to be a coalminer's daughter ♪ >> reporter: she's proof there's big talent in small places. 21-year-old kayla sloan was toiling away in the checkout lane at this walmart in west virginia when a customer noticed her singing a tune. and then pulled out an iphone to record the magic. little did she know the video would catch fire on the internet. ♪ my coat of many colors >> reporter: this is coal mining country. her husband is a coal miner, her grandfather, too. she told us she's had big dreams for years. but never thought there's any chance they could come true. >> i never even thought that it would make it that far.