What makes Sunday by Hurts notable?

'Sunday' became a notable track for Hurts, charting in several countries and showcasing their signature blend of melancholic melodies and electronic production. The song's emotional depth resonated with listeners and contributed to their reputation as key figures in the modern synth-pop scene. Released as the lead single from their sophomore album, 'Sunday' came after Hurts' breakthrough debut, 'Happiness,' which included hits like 'Wonderful Life.' At this stage, the duo was solidifying their presence in the synth-pop genre and expanding their audience following initial success in Europe.