Héctor Juan Pedro Bosio, known by his stage name Zeta Bosio, is an Argentine musician, record producer and DJ, best known as the bassist of the rock band Soda Stereo. He was also the bassist of Chilean band La Ley between 2013 and 2014. Nowadays he plays in the band Shoot the Radio, which he co-founded.
Bosio, along with Gustavo Cerati and Charly Alberti, formed Soda Stereo in 1982. They recorded over a dozen records until they disbanded in 1997. Since then, he kept a low profile until quite recently. From Wikipedia
