Paavo Olavi Siljamäki, (born April 25, 1977), a Finnish trance artist, is one-third of the UK based trance group Above & Beyond. "Paavo Olavi Siljamäki" (or "P.O.S" for short) is also a solo project for Paavo. Apart from that, Paavo has also been member of Aalto, Dirt Devils, Free State, Rollerball, Tranquility Base, Zed-X and OceanLab. Paavo's interest in producing music began relatively early in his life, when his parents bought a piano when he was 5 years old. He started playing Cello and Piano and was playing with computers too from a very early age.