What is the hardest female song to sing?

The hardest female song to sing is generally considered to be "I Will Always Love You" by Whitney Houston. This iconic song has an incredibly wide vocal range, demanding impressive control and power from the singer. With its soaring high notes, intricate runs, and emotional depth, "I Will Always Love You" presents a genuine challenge even for experienced vocalists. Houston's rendition, with her unmistakable vocal prowess, cemented its status as one of the most demanding songs for female vocalists. However, the sheer challenge and emotional weight of this song make it an enchanting moment when flawlessly performed.