2023 was a year of highs and lows ... and unfortunately, some of the lowest points came from the world's biggest stars tragically losing their lives -- many of whom died way too soon.
Matthew Perry shocked the globe when he was found unresponsive in his hot tub in October ... as did Sinead O'Connor, who was found at her flat in South London at the end of July.
25-year-old "Euphoria" star Angus Cloud was found dead at his family's home in Oakland, CA, also at the end of July .