Mugani Desire, best known as Big Fizzo, is a musician from Bujumbura, Burundi.

Fizzo was born and raised in Bujumbura. He launched his music career in the late 1990s with a group called Nigga Sound. The group was not doing well and he decided to leave to begin a solo career. Kidum, a Kenyan based Burundian musician, discovered him and offered to sponsor his career. Since then, Fizzo has released songs such as ‘Mbarira’, ‘Bajou’ and ‘Sitapenda Tena’. In April 2017, he released a song called 'Urambabaza'. The song was well-received. Fizzo sings in Kinyarwanda, Kiswahili, French and English.