The 100th performance of the band’s “A Head Full of Dreams” world tour featured confetti-cannons, LED displays and the CN Tower. Nick Krewen Music, Tues., Aug 22, 2017 Coldplay at the Rogers Centre, Aug. 21, 2017 It’s not every day that the CN Tower gets transformed into the world’s tallest concert lighting prop. But it’s also not every day that British rockers Coldplay take time to perform at the open-roofed…