[koumori]

Originally Posted by Chris85

She speaks that way too. Just saying. She's just trying to be cute and sound young/closer to her former voice IMO and it became a habit.

She's always spoken like that, but incorporating it into her singing is usually during moments of strain. Unless she says herself that she does it only to be cute and to sound younger, I'm going to assume she slips into it when trying to control her voice as well. It's no coincidence this vocal habit began being used more as her ears got worse.