Who performed "I Took A Pill In Ibiza"?

The song "I Took a Pill in Ibiza" was performed by Mike Posner. The answer is Mike Posner because he is the artist who wrote and recorded the song. Posner's catchy and introspective lyrics, combined with the upbeat production, resonated with listeners worldwide, making it a chart-topping hit. His distinct vocal style and personal experiences conveyed in the song struck a chord with many people, contributing to its success.