Knocked Loose have unveiled a crushing new single ‘Suffocate’ featuring Poppy — listen to it below.Last night, the American hardcore band shared the video for ‘Suffocate’ via Pure Noise’s YouTube channel. The track starts with a furious, hard-hitting riff as the band waste no time, diving straight into the heaviness and aggression.Soon, Poppy joins them, screaming and leading the band into a heavy reggaeton-inspired breakdown.