The news broke earlier this morning.
News broke via Helsinki festival Flow, which published a statement earlier today. There's no official word on the cause of death.
Together with Jaakko Kestilä, Häkkinen founded the Finnish electronic music band Imatran Voima in 1998. The duo played together on RA's stage at Flow Festival on Friday. The festival held a moment of silence for Häkkinen at 5:30 PM today.
Listen to Häkkinen's 2010 remix for Sex Tags Mania, produced with Stefan Mitterer.