Smash Mouth’s Lead Singer Steve Harwell Useless at 56

Smash Mouth’s lead singer, Steve Harwell, has died … TMZ has realized.

The rock band’s longtime frontman — who was one of many unique founding members relationship again to 1994 — handed away Monday morning at his dwelling in Boise, Idaho because of liver failure — this in accordance with his supervisor.

We’re informed he was surrounded by household and associates and handed peacefully and comfortably.

TMZ broke the story … Steve had been in hospice and was given solely days to stay this previous weekend. As such, he was…