High Notes Battle(高音比較) : Demi Lovato vs G.E.M.(鄧紫棋).~ [A4-F6]
Gem / Demi Lovato vocal range, high notes belting
head voice, low notes, whistle register
音域, 海豚音, 高音, 超高音, 真音, 假音,
i hope more people outside HK could know more of Gem
you may feel free to ask for any song names
both two are very good singers