Costee
Jussi Tiainen, born in 1995, is a Finnish singer‑songwriter known as Costee who
began his musical journey with drums gifted by his father at age eight, later
taking up guitar. He entered the public eye in 2014 as a member of the
Turku‑based duo Sima with Mathias Hermansson, moving from indie roots to
dance‑pop before launching a solo career. His debut album Ehkä joskus tää viel
naurattaa (2019) entered the official Finnish charts and remained for 74 weeks,
earning him a YleX breakthrough award that same year. Subsequent releases
included Viaton (2020), Kaikki loppuu aina (2020), ...
