Career
Hahto then recorded with the band Wintersun as a session drummer before joining them as a band member. Hahto has an endorsement relationship with Meinl cymbals, Pearl drums and hardware, Balbex drumsticks, Roland V-Drums and Finfonic earphones. On 6 August 2014, it was announced that Hahto will be playing drums on the forthcoming Nightwish album, replacing Jukka Nevalainen, who had to take a temporary break from the band due to insomnia.