well the point of singnig two songs is to contrast and so a rang of things you can do, so definitly sing a song that not just for the one role.
what about like "notice me horton" for a Hope like song, I only saw the show once a while again but I think they are along the same lines of light voice..y and strange funny behavor wise.
or see i forget what hope sings other then the last song, I know she does the one about listing to your heart but I forget how it sounds, but what about like I hate to say it but "Tayler the Latte Boy" ( I like Sunsa Egans vertion of the song but it was made popular but Kristen Chenowith).
Hope they are ok, I'm not so good at picking songs for other people, but I like both of thoese songs.
Grace: My love for you is like this scar (points to elbow) ulgy but permanent!