Paavo Olavi Siljamäki (born 25 April 1977) is a Finnish writer, producer and DJ, comprising one-third of the British trance band Above & Beyond.

[2] Based out of London since 1997, Siljamäki attended the University of Westminster where he met fellow Above & Beyond member Jono Grant.

[6] Released on Anjunabeats, Gravity was later remixed by James Grant and Andrew Bayer in 2012.

Siljamaki revived the P.O.S alias in the studio, extending his solo work, releasing the Deeper Tales album in 2023.

[2][8] On 23 February 2024, Siljamäki played a one-hour live performance under his P.O.S alias, at the Ahoy Rotterdam for A State of Trance, premiering new material.