What makes Heartless by The Weeknd notable?

'Heartless' debuted at number one on the Billboard Hot 100, solidifying The Weeknd's position in pop music. The song's dark themes resonated with listeners and sparked discussions about mental health and emotional struggles, further pushing boundaries within mainstream pop. By the time 'Heartless' was released on November 27, 2019, The Weeknd had already established himself as a dominant force in contemporary R&B. This single marked his return after a brief hiatus following the release of his critically acclaimed album 'My Dear Melancholy' in 2018, showcasing a continued evolution in his sound and thematic exploration.