Gakuto Oshiro , better known by his mononymous stage name Gackt, is a Japanese singer-songwriter, musician, record producer and actor.
Gackt in 2017
Gackt in 2013 on Indonesian RCTI greeting BIMA Satria Garuda.
Gackt with Sasaki Nozomi, Tom Hiddleston and Samuel L. Jackson at the Japanese premiere of Kong: Skull Island in 2017.
Gackt as Uesugi Kenshin at Jōetsu city's 83rd Kenshin Festival in 2008.
A mononym is a name composed of only one word. An individual who is known and addressed by a mononym is a mononymous person.
Plato, Greek philosopher
Narmer, ancient Egyptian pharaoh
Pocahontas
Molière, 17th-century French dramatist