 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 went on hiatus from the band due to insomnia, and Hahto performed on all live shows since that date.