"By Your Side" is a song by Scottish DJ and record producer Calvin Harris featuring English singer Tom Grennan, released on 4 June 2021 via Sony Music. It was included on Harris' first compilation album, 96 Months (2024).

Background On 4 June 2021, Grennan shared a video on Twitter, captioning it "this is going to be the summer we've all been waiting for."

In an interview with Apple Music 1's Zane Lowe, Harris said: "The first thing is I liked Grennan's voice a lot. I started following him on Instagram. And I was struck by his positivity, his relentless positivity in his posts... So when I figured out what the song was going to sound like, he seemed like such an obvious choice."

Composition Harris described the song as "nostalgic", and said: "In a nice way. The sort of thing that nobody else is making it, so that feels good. And regardless of how it does or whatever, it felt really nice to me."

Reception Ellie Mullins of website We Rave You described "By Your Side" as the most essential summer anthem for 2021, writing that "Grennan's influence is heard and not just through the vocals either but also through the fun, upbeat guitars that can be found throughout" and "Harris is on top form with upbeat productions and synths that beg to be danced along to".

Music video The music video was directed by Emil Nava and released on 11 June 2021. It was described by Jason Heffler of EDM.com as "kaleidoscopic" and a "bubbly audiovisual project that ties in perfectly with the sun-kissed tune".

Charts

Weekly charts + Weekly chart performance for "By Your Side" Chart (20212023) Peakposition Estonia Airplay (TopHit) 112 France (SNEP) 90 Lithuania (AGATA) 72 Mexico Airplay (Billboard) 29 New Zealand Hot Singles (RMNZ) 5 Panama International (PRODUCE) 43 Russia Airplay (TopHit) 21 San Marino Airplay (SMRTV Top 50) 21 Ukraine Airplay (TopHit) 107

+ Chart (2026) Peakposition

Monthly charts + Monthly chart performance for "By Your Side" Chart (2021) Peakposition CIS Airplay (TopHit) 24 Czech Republic (Singles Digitál Top 100) 69 Russia Airplay (TopHit) 27 Slovakia (Singles Digitál Top 100) 71

Year-end charts + 2021 year-end chart performance for "By Your Side" Chart (2021) Position Belgium (Ultratop Flanders) 72 Belgium (Ultratop Wallonia) 84 CIS Airplay (TopHit) 94 Hungary (Dance Top 40) 45 Hungary (Rádiós Top 40) 11 Netherlands (Airplay Top 50) 50 Netherlands (Dutch Top 40) 45 Russia Airplay (TopHit) 118 UK Singles (OCC) 64 US Hot Dance/Electronic Songs (Billboard) 21 + 2022 year-end chart performance for "By Your Side" Chart (2022) Position Belgium (Ultratop 50 Flanders) 188 Hungary (Dance Top 40) 47 Hungary (Rádiós Top 40) 81

+ 2023 year-end chart performance for "By Your Side" Chart (2023) PositionHungary (Dance Top 40) 99

+ 2024 year-end chart performance for "By Your Side" Chart (2024) PositionHungary (Dance Top 40) 85

+ 2025 year-end chart performance for "By Your Side" Chart (2025) Position Hungary (Dance Top 40) 89

Certifications

Release history + Release dates and formats for "By Your Side" Region Date Format Label Various 4 June 2021 Sony United Kingdom Contemporary hit radio Italy

References