John Waters celebrated his 70th birthday in April. From his early days as an enfant terrible film maker and the King of Sleaze, he has sustained a remarkable career as an author, a stand-up comedian, a visual artist, and one of America’s most thoughtful observers on the cultural landscape. He is the master of re-invention, and no work is more emblematic of that than Hairspray, which was a movie, a musical, and then a movie of a musical. This weekend, he’ll narrate Hairspray in yet another iteration: a Symphonic Production with the BSO. John Waters joins me this morning to talk about art, politics, and how to keep looking ahead.