I agree that both of these songs definitely can be oversung, but I completely disagree that they are sad songs. They are both songs of hope and optimism for a better life than what the characters have at the time. There may be some sadness that generates the songs, but I think these are both uplifting songs to Dorothy and Annie. Maybe this is why people sing the last refrains of these with such volume...they really want us to know that they will overcome, with as much voice possible. Personally, I hope Kat really nails the song tonight without oversinging it. It's a great choice for her voice.