Regine Velasquez's version is actually incredible once you watch the whole video. She didn't sing it the way other singers sang it. She sang it the way she would sing it. It's a whole different version! 👏
I’m just in love whit Lea micelles version. You can find her single version on Spotify an it’s my favourite Glee track. Her voice just does something in the high note I really love.
Its not really that CHALLENGING at all. That single F5 is where most pure soprano's starting note to belt out. However if you use the "Meeeeeeeeee" challenge, it would be more amusing to watch.
Belting range starts way eariler for sopranos, F5 is near the top of true belting range. But yeah, the note should be easy to hit for most trained high mezzos/sopranos, but the role overall is quite difficult.