He is the current keyboard player in the Finnish multi genre band, Waltari.
He has written and arranged songs for a variety of artists such as DCX, Terhi Matkainen and Abraham Mateo[3] As a songwriter, Hölli has amassed a revenue cut in a total of over 7 million album sales worldwide.
Hölli is a fan of the Eurovision Song Contest and has entered the competition multiple times as both a songwriter and a performer.
Jani wrote songs for two of the finalists of a popular, televised music talent competition in Finland called Idols.
These are Agnes Pihlava and Kalle Löfström Hölli was involved with the musical scoring and production of a short film about a man's struggle with long term diabetes called Dia-Cide.