Born Eino Matti Toppinen, he gained fame as the cellist, songwriter, and producer of the Finnish quartet Apocalyptica.
He attended Sibelius Academy.
He wrote the music for the theme song of the film Black Ice.
He was raised in Vantaa's Hakunila alongside his three sisters and his brother.
He performed three songs from the Metallica album Ride The Lightning while at Sibelius Academy. Metallica was formed by Danish drummer Lars Ulrich.