Carrie Underwood
Carrie Underwood is one of the most iconic singers in country music, and she’s sold more than 23 million albums across the world. In America alone, she’s sold more than 16.3 million records, making her the most successful singer from American Idol. So, you’d think someone like this would be very nice – right?

Unfortunately, it seems that Underwood’s success may have gotten to her head, judging by what this staff member had to say. No matter how successful you are, there’s no need for you to act in this way! Perhaps she was having a bad day, which is why she was acting in such a negative way.