Smash Mouth singer Steve Harwell dies at 56 September 5, 2023 by Ronny Smash Mouth singer Steve Harwell dies at 56 – CBS News Watch CBS News Steve Harwell, the former Smash Mouth lead singer behind the hit “All Star,” died Monday after suffering liver failure. He was 56. Be the first to know Get browser notifications for breaking news, live events, and exclusive reporting. Not Now Turn On