Member:
1988-1995 Vomiturition - drums  
1991-1992 Cartilage - drums  
1994 Wings - drums  
1994-2006 Rotten Sound - drums  
1995-1999 The Crescent - drums  
2003-2006 Arthemesia - drums  
2004- Wintersun - drums  
2009- Swallow The Sun - drums  
Studio musician:
2013 Trees Of Eternity - drums  
2014 Nightwish - drums  
Live musician:
2007 Swallow The Sun - drums  
2009 Paul Di'Anno - drums  
2013 Rotten Sound - drums  
Guest musician:
1997 Throes Of Dawn - percussion  
2000 Agressor - drums  
2011 Nightwish - additional percussion  


Personal information

Born on: 31.12.1973

Kai Hahto (born in 1973 in Vaasa, Finland) is a Finnish drum-teacher and the drummer of the Finnish metal band Wintersun, and the former drummer of grindcore band Rotten Sound. Beside these, he has played in many other bands, with styles varying from black metal to jazz.

He is use Pearl Reference, Reference Pure, Masters Premium, Vision drums, Meinl Cymbals, Evans drumheads, Balbex drumsticks, Roland TD-30 + electronics and Finfonic ear protection. Hahto Used to played with a handmade Kumu drumkit.

His All-time favorite Metal albums would be Porcupine Tree - Fear Of A Blank Planet, Iron Maiden - Piece Of Mind, Death - Human, Katatonia - Night Is The New Day, Metallica - Ride The Lightning, Devin Townsend - Ocean Machine based on his page on Wintersun official website.

After he recorded Wintersun album Wintersun and long time awaited album, Time I, as a drummer with Jari Mäenpää, Jukka Koskinen and Teemu Mäntysaari. He is working with Wintersun on their yet to be released album Time II.