As solo artist • "I Need You" (2000) • "Don't Say" (2000) • "Around You" (2005) • "People Will Go" (2006) • "Ghost" (2007) • "Heaven" (2007) • "
Imagination" (2008) • "Be It All" (2008) • "Lost in the Sound" (2009) • "
Lovesong" (2009) • "Closer" (2010) • "Awaken" (2011) • "It's Too Late" (2011) • "High Glow" (2012) • "Sky Stand Still" (2014) • "Two Souls" (2015) • "Dreamweaver" (2015) • "Photograph" (2017) • "In Ohm" (2017) • "Get Me Through the Night" (2017) • "
Let Him Go" (2019) • "No One Else" (2019) • "We Belong to the Night" (2019) • "Under the Midnight Sun" (2020) • "Lay Down" (2021) • "Tight Wires" (2021) • "Wish You Were Here" (2021) • "Where Are You Now" (2022) • "All or Nothing" (2022) • "Is It True" (2022) • "Pushing On" (2023) • "Heartbreaker" (2023) • "Catch Me" (2023) • "Let It All Come Down" (2024) • "All the Way" (2024) • "Come With Me" (2024) • "What Will Be" (2024) • "Stay the Night" (2025) • "Nothing Feels Real" (2025) • "What If" (2025)
Co-productions • "Star Children" (2001, as Guardians of the Earth) • "One Moon Circling" (2001, as Guardians of the Earth) • "
As the Rush Comes" (2004, as
Motorcycle) • "Around You" (2004, as Motorcycle) • "Imagination" (2004, as Motorcycle) • "Deep, Breath, Love" (2004, as Motorcycle) • "Blue Heart" (2006, as Motorcycle) • "High Glow" (2007, as Taxigirl with
Tiësto)
Collaborations • "Everything With You" (2004, with
D:Fuse) • "Into Me" (2004, with D:Fuse) • "Talk Like a Stranger" (2004, with
Deepsky) • "Living the Dream" (2005, with D:Fuse) • "Ghost" (2006, with Deepsky) • "Like a Waterfall" (2006, with
Solarstone) • "Everything" (2007, with
Tiësto) • "Ask" (2008, with JJ Flores & Steve Smooth) • "My Love" (2009, with
Airscape) • "
Every Other Way" (2009, with
BT) • "The Light in Things" (2010, with BT) • "N.Y.C." (2010, with
Richard Durand) • "Show Me the Way" (2011, with
Allure) • "Can't Stop" (2011, with
Ronski Speed) • "Turn It Around" (2011, with
Robbie Rivera) • "Flying Blind" (2012, with
Cosmic Gate) • "In Your Eyes" (2012, with
Ferry Corsten) • "Before You Go" (2012, with
Andy Duguid) • "As We Collide" (2012, with
Christian Burns and
Paul Oakenfold) • "Letting Go" (2013, with BT and Fractal) • "Tonight" (2013, with BT and
tyDi) • "Higher Than the Sun" (2013, with
Roger Shah and Brian Laruso) • "Together" (2013, with
ATB) • "Hard to Cure" (2013, with ATB) • "Right Back to You" (2013, with ATB and
York) • "Runaway" (2014, with Cold Blue and Dennis Sheperd) • "Glitter and Gold" (2014, with
Sunlounger) • "YAI (Here We Go Again)" (2015, with Cosmic Gate) • "Hold On" (2015, with Shant & Clint Maximus) • "Come Back" (2015, with
Tom Fall) • "Dreaming" (2015, with BT) • "Happy" (2015, with
Austin Leeds and Redhead Roman) • "iBelieve" (2016, with
Bobina) • "Anything Can Happen" (2016, with Fatum) • "Stay" (2016, with
Delerium) • "Once in a Lifetime" (2016, with Delerium) • "Fall into You" (2016, with Cosmic Gate) • "Here & Now" (2017, with
Tenishia) • "Carry Me Away" (2017, with Game Chasers) • "Head On" (2017, with
Jochen Miller) • "Materia" (2017, with Cosmic Gate) • "If Not Now" (2017, with Cosmic Gate) • "The One" (2018, with Joonas Hahmo and
JS16) • "Calling for Love" (2018, with
Markus Schulz) • "Star-crossed" (2018, with Roger Shah) • "Heartbeat Tonight" (2018, with Elevven) • "Ghost" (2018, with Elk Road) • "Say the Word" (2018, with tyDi) • "Fading" (2019, with tyDi) • "I Won't Let You Fall" (2019, with
Aly & Fila) • "Here With Me" (2020, with Dan Thompson) • "Second Day" (2020, with Markus Schulz) • "Long Way Home" (2020, with Will Atkinson) • "Don't Let It End" (2020, with Oliver Smith) • "Sunrise" (2021, with Aly & Fila) • "By My Side" (2021, with Dennis Sheperd) • "Just Believe" (2022, with tyDi) • "Eugina" (2022, with Paul Thomas and Fuenka) • "From This Day On" (2023, with
Andrew Rayel) • "New Horizon" (2023, with Roger Shah) • "Spread Your Wings" (2023, with Talla 2XLC) • "Universe" (2023, with Space Motion) • "We'll Be Together" (2023, with Daniel Wanrooy) • "Love Comes Quickly" (2024, with
Young Parisians) • "Come Alive" (2025, with Jerome Isma-Ae) • "After Dark" (2025, with Dan Thompson) • "Spellbound" (2025, with
Alex M.O.R.P.H. and MRPHLNDR) • "Call My Name" (2025, with Space Motion)
Holiday singles • "Have Yourself a Merry Little Christmas" (2016) • "I'll Be Home for Christmas" (2018) • "The Christmas Song" (2020) • "Silent Night" (2021) • "Santa Baby" (2022) ==Chart positions==