Career
In the early 1990s, he started playing bass, drums, and singing for multiple bands based both in the United States of America and Finland. September 2007, Hämäläinen joined the Gothenburg based Melodic Death Metal band Nightrage as their permanent vocalist. In January of 2015, Armageddon the Swedish Melodic Death Metal band led by former Architecture Enemy guitarist Christopher Amott, announced him as their replacement vocalist for the recently departed Matt Hallquist.
He occasionally provides guest vocals for bands ranging in all genres of extreme metal both live, and in studio.
An avid sports and martial arts fan, he studies Brazilian Jiu-Jitsu under the 10th Planet Jiu-Jitsu system. Style
His voice is reminiscent of the early styles of In Flames"s vocalist Anders Fridén.
lieutenant has also been compared to that of At The Gates vocalist Tomas Lindberg and Dark Tranquillity"s Mikael Stanne. In reference to his work on the Nightrage album Wearing A Martyr"s Crown, Sputnikmusic wrote "Hämäläinen, from Finland, who has a lot of vocal similarities to Tomas Lindberg, which brings back a resemblance to their original sound from their first two albums".
Added to his clean vocals "he can still maintain a melodic edge, but he only does it every now and again within the album.
He only does it for the purpose of giving some of the songs a musical edge so the listener doesn’t fall asleep thinking that the only new addition of style is just a higher use of acoustic guitars."
Rusted Eyes Awake (2008) by Landmine Marathon - guest vocals on "Bled To Oblivion"
The Essence of Decay (2009) by Rising Pain - guest vocals on "Feel Less Alive" and "Am I Awake"
Self Destruct Syndrome (2011) by Neverborne - guest vocals on "Mechanical Ruin"
Of Unsound Minds (2012) by AfterBlood (feat Tom Angelripper) - guest vocals on "The More I Lie"
The Darkest Of Angels (2015) by Dead By Wednesday - vocals on "The Shape Of Fire"
Amaranthe - Vocals, Live September 14, 2012 at ProgPower United States of America XIII, Atlanta, Georgia, United States of America
Holier Than Thou by Nightrage for Metal Hammer Magazine Greece "And Coverz for All - A Greek Tribute to Metallica" - Vocals.