I don't really think that this low harmonized note can be emitted in a live performance in a controlled way, she has reached lower and higher notes than some of the chosen in this video too, but not in a controlled way (She reached a ugly F#5 in mix, a off tune C#3 and a exclamated E6).
Watch video (Full HD) Rihannas’s Mini Vocal Range: G♯2 – D6 (Demonstrated in Studio and Live) online without registration, duration hours minute second in high quality. This video was added by user Grupo Harmony 29 September 2015, don't forget to share it with your friends and acquaintances, it has been viewed on our site 3,712 once and liked it 75 people.