I love Twice as a group. They're good performers, with catchy songs, pretty visuals, eye-catching choreography, and really likeable personalities, performances and songs aside. But often when I watch their performances or MVs, my ears hurt when they sing their choruses, to the point that I have to turn down the volume for relief. This hasn't been the case for any other artist I've listened to. This honestly isn't a bashing thread, I'm just looking for someone with more musical knowledge to explain why so many of their choruses hurt my ears. Cheer Up, HeartShaker, Yes or Yes, and Fancy's choruses all sound to me like they're straining their voices, and it's painful. Nayeon and Jihyo are the main culprits, since they sing most of these choruses. But I like most of their voices the rest of the time! It's just some of their title choruses sound like they're straining to shout lines that are too high for them. Is this the case? Or are they executing the choruses perfectly, and that's exactly how they should sound (and would sound if any singer were to sing those choruses too)? Is this just me disliking their voices in higher octaves for some reason?