A curious vocal pattern has crept into the speech of young adult women who speak American English: low, creaky vibrations, also called vocal fry. Pop singers, such as Britney Spears, slip vocal fry into their music as a way to reach low notes and add style. Now, a new study of young women in New York state shows that the same guttural vibration—once considered a speech disorder—has become a language fad.

Not really related since I am neither female nor a native English speaker, but still: When I studied phonetics a few years ago and analyzed spectrograms of my own speech, I found it very hard not to "creak" at the end of utterances. Had no idea some would consider it a "disorder." I don't really feel disorderly.