"Heatstroke" is a song by Scottish DJ and record producer Calvin Harris featuring American rapper Young Thug, and American singers Pharrell Williams and Ariana Grande.

It is the second single from Harris's fifth studio album, Funk Wav Bounces Vol.

[1] The song was written by Calvin Harris, Young Thug, Pharrell Williams, and Brittany Hazzard.

[2] Initially Robin Hannibal and Cecilie Karshøj of Danish duo Quadron were not credited as co-writers.

According to Karshøj, Quadron wrote the demo version of "Heatstroke" with Pharrell Williams in 2012, but when Pharrell Williams released the song with Calvin Harris in March 2017, Hannibal and Karshøj were uncredited as co-writers.