I can't speak for most of the un-talented artists on the radio nowadays, but I would like to share a little-known fact about Taylor Swift.
The ONLY reason she's successful is because of her looks. That's about all. In fact, she wouldn't be known at all if it wasn't for her filthy-rich father giving some record company $3 million and asking them to make his daughter a star. I'm not kidding. They spent 3 months auto-tuning her voice in the studio, then they gave her a record contract.
Think about this: If she was 50 pounds heavier, had short brown hair, and wore glasses, do you think for one minute that she would be as popular as she is today? People would be saying "Taylor, Who??"