"Summer Days" is the sound of a season compressed into a single song. Released on 25 April 2019, the track brought together Dutch DJ Martin Garrix, American rapper Macklemore, and Patrick Stump of Fall Out Boy for a collaboration that felt like a festival lineup in one record. It is a bright, breezy pop-house tune about that electric feeling of meeting someone on a summer day and not wanting the moment to end.

The song's origins are almost as sunny as its sound. On 20 April 2019, Garrix, Macklemore, and Stump all shared the same picture on social media with the caption "I got this feeling on a Summer day," teasing the collaboration before it was officially confirmed two days later. Billboard's Kat Bein described the result as "a cross-genre-sing-along."

The music video, released on 22 May 2019, leaned into the song's carefree vibe, and the track quickly became a staple of summer playlists. It is the kind of record that doesn't ask much of you ? it just wants you to feel good.

What I love about "Summer Days" is how it captures the feeling of a perfect summer moment. It is a song that works in a club, in a car, and in your head long after it's over. It is not deep, but it is honest ? and there is a lot to be said for that.

The song is a strong example of the power of collaboration. Garrix, Macklemore, and Stump each brought something essential to the track, and the result is a song that feels both fresh and familiar. It is a reminder of why Garrix has become one of the most reliable names in electronic music. It is a song that stays with you long after it ends, and it is a strong example of the craft behind modern pop.