DJ Heartstring (stylised in all caps) are a German DJ and production duo, consisting of Jonas Hellberg and Leonard "Leo" Hans Victor Brede, formed in Berlin in 2021.
Biography Both Brede and Hellberg began producing electronic music as teenagers, before meeting around 2017 through Brede's girlfriend. The duo released their debut EP "Destiny of the Moment" in 2021 through Union Trance Mission.
In June 2023, DJ Heartstring made their Boiler Room debut at AVA Festival, which achieved over 100k views in under a week. That same year, they were crowned as one of the BBC Radio 1 Future Dance Stars by Sarah Story.
Discography Extended plays Title Details Destiny of the Moment Released: 28 July 2021 Formats: digital download, streaming Label: Union Trance Mission Eternal Euphoria Released: 26 November 2021 Formats: digital download, streaming Label: Lobster Theremin 4 The People Released: 4 February 2022 Formats: digital download, streaming Label: DJ Heartstring Met Her at Bäreneck Released: 15 April 2022 Formats: digital download, streaming Label: DJ Heartstring Gift (with TELESHOP) Released: 27 May 2022 Formats: digital download, streaming Label: DJ Heartstring Teenage Dreams Released: 7 April 2023 Formats: digital download, streaming Label: Teenage Dreams, A Million / Groove Attack Why Can't We Live Forever? Released: 27 October 2023 Formats: digital download, streaming Label: Polydor Records Fuerteventura Forever Released: 20 September 2024 Formats: digital download, streaming Label: Teenage Dreams, A Million / Groove Attack You Are The Sun, I Am The Sky Released: 14 February 2025 Formats: digital download, streaming Label: DJ Heartstring Forever (with Swim) Released: 22 August 2025 Formats: digital download, streaming Label: DJ Heartstring & SWIM
Singles Title Year Label Album "Coming Back 2 U" 2021 Lobster Theremin Eternal Euphoria (EP) "Lost In Emotion" "São Paulo Fever" "Meteora Sunrise" 2021 DJ Heartstring Met Her at Bäreneck (EP) "BAE" 2023 Teenage Dreams (EP) "Never Let Me Go" "It Ain't Over" rowspan="4" "In Your Arms" 2024"Don't Stop" (with southstar) "Alone Again" (with SWIM) DJ Heartstring & SWIM "Last Time Under Purple Skies" 2025 DJ Heartstring You Are The Sun, I Am The Sky (EP) "Staring Into The Sun" COLUMBIA rowspan="2" "Back to My Love" Armada Music "If U Want My Heart" (with Kettama featuring KLP) Steel City Dance Discs Archangel "A Thousand Lies" (with DMA's and Saidah) 2026 DJ Heartstring
Remixes Title Year Artist(s) "Open Air" 2022 TDJ featuring fknsyd "Enjoy Your Life" 2023 Romy "In The City" Charli XCX and Sam Smith
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