"Diamond Heart" is a song by British-Norwegian record producer and DJ Alan Walker, featuring Swedish singer-songwriter Sophia Somajo.

Two remixes were officially released, one by Syn Cole and one by Dzeko.

Billboard mentioned: "Walker's bouncing rhythm and Sophia Somajo's bullet-proof performance comes through slightly tropical.

"[2] We Rave You commented: "Atmospheric from the very first moments, the track centres around Somajo’s haunting vocals which effortlessly intertwine with the track’s addictive".

"[4] The video “Diamond Heart” is the third and the final chapter of the World of Walker trilogy.