Anthem 2005) / After Me" 2004 "Unreleased Tracks From The Album Symsonic" (inc. Extended Mixes for "Conspiracy", "Cosmomatic" and "Down From The Deep") 2005 "Opus 17 / Top Gear" 2007 "This World Is Watching Me" (with Armin van Buuren and Kush) 2007 "Life Less Ordinary" (with Alex M.O.R.P.H. and Fragma) 2008 "And Then..."(with Jochen Miller) 2009 "L.E.D There Be Light" (Trance Energy Anthem 2009) 2009 "Symfo" (Sunrise Festival Theme 2009) 2010 "The Great Escape" (with Jochen Miller) (Entrance Theme 2010) 2010 "100" (with Nic Chagall and Wippenberg) 2012 "Wild And Perfect Day" (with Jochen Miller and Sarah Bettens) 2012 "Witness" (with Cerf, Mitiska & Jaren) 2012 "7 Instead Of 8" 2013 "Elements Of Nature" (with M.I.K.E.) 2013 "Floorlifter" 2013 "13.11.11" 2014 "Freudenrausch" (with Dennis Sheperd) 2014 "Airwave (21st Century Mix)" 2015 "Juno" (with M.I.K.E.) 2015 "Zenith" (with M.I.K.E.) 2016 "Superstring" 2016 "This World Is So Amazing" (with York and Lola) 2019 "We Finally Met" (with Marco V) 2021 "The Greater Light To Rule The Night" (with Armin van Buuren) As R.O.O.S. 1997 "Instant Moments (Skyline Mix)" 1997 "Instant Moments (Waiting For)" (with Evelyne Derks) 1998 "Living in a Dream" 1999 "Body, Mind & Spirit" 2002 "Instant Moments 2002" As Pedro & Benno 1997 "Scream For Love" 1998 "Talkin' To You" 1999 "Speechless" As A.I.D.A. 1999 "Far And Away" 1999 "Far And Away/Merit" 1999 "Remember Me/Corvana" Other aliases 1997 "Human Beast", as Simplistic Mind 1997 "Baby Freak", as Precious People 1997 "Reflections of Love", as Precious People 1998 "To the Church", as Two Disciples 1998 "I Know You're There", as Tritone (with DJ Misjah) 1998 "Ssst... (Listen)", as Jonah (with DJ Misjah) 1998 "Subspace Interference", as Control Freaks (with DJ Tiesto) 1998 "Play it Rough", as System Eight (with Michel Keyser) 1999 "Human Planetarium", as Gualagara 2000 "Yeah... Right", as Jonah (with DJ Misjah) 2000 "Straight to the Point", as SPX (with DJ Misjah) 2003 "The Anthem 2003", as Sensation 2003 "Perfect Blend / Deep Ranger", as Mac J 2004 "Womanizer / Nightware", as Mac J 2005 "Dreamchild / Flash", as Johan Gielen Remixes 1999 "Reachers Of Civilization", by York 2000 "Blue Lagoon", by Tunnel Allstars 2000 "Cry", by System F (with Saskia Lie-Atjam) 2000 "Perfect Moment", by Mary Griffin 2000 "Superstring", by Cygnus X 2000 "Let Me Be Your Fantasy", by Baby D 2000 "It's My Turn", by Angelic (with Amanda O'Riordan) 2000 "Home", by Chakra (with Kate Cameron) (Unreleased)