How to sing high belt section of "On My Own" from Les Mis

I played Eponine in Les Miserables on Broadway!🥖 Watch me coach a student through “On My Own!
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[@evaa_l02]

my singing teacher does the straw method with me, it works so well!!

[@katiedavies8999]

What happens if you don’t have straw? Are there any other ways of doing it?

[@angusmcallister111]

I personally prefer the higher notes in this song not in belt. Sounds better casted with a soprano singing mix top notes