Singer Denounces Past Drug Use He Sang About in Hit Song

When American singer Mike Posner denounced illicit drug use and materialism on X last week, addiction and publicity experts applauded the move but wondered what took the 36-year-old so long to come out against substance abuse. The lyrics in the 2015 hit drug song “I Took a Pill in Ibiza” describe drinking alcohol at an Avicii show, accepting the offer of a pill from a mystery man in the crowd, and ingesting it. Avicii was a successful Swedish DJ and electronic dance music producer with whom Mr. Posner had co-written another song called “Stay with You.” “I took a pill in Ibiza to show Avicii I was cool and when I finally got sober, felt 10 years older, but [expletive] it, it was something to do,” Mr. Posner sang at the time....