On July 15, 2019, Hahto was announced as Nightwish's permanent drummer following Jukka Nevalainen's decision not to return to the band. Wintersun is known for creative harmonies, fast tempos and both harsh and clean vocals. Although Mäenpää enjoys writing his music without limiting it to any genre, the band's myriad styles have been broadly described as power metal, folk metal, melodic death metal, neo-classical metal, and black metal.