Coldplay Xylobands used at Tramlines festival - video
The electronic wristbands were given out to the 8,000-strong crowd during the final performances of headliners Reverend and the Makers and DJs True Tigers.
Watch the Nokia Lumia Live stage light show at Tramlines below:
Jason Regler, the inventor of Xylobands, said: "It was amazing to see how well the bands worked in an outdoor venue and how they enhanced the festival experience.
"We were thrilled to be a part of Nokia's lightshow, particularly at a great free festival like Tramlines."
Xylobands were first used on Coldplay's 'Mylo Xyloto' tour, as well as during their performance on last year's X Factor final.
Other acts who performed at the event included Ms Dynamite, Charli XCX and We Are Scientists.