Former Smash Mouth singer Steve Harwell passed away yesterday. He was only 56. According to reports, he was in hospice care due to liver failure. Almost EVERYONE knows Smash Mouth's hit, "All Star". It was in "Shrek", along with their Monkees cover of "I'm a Believer". Steve started Smash Mouth back in 1994, and he was the lead singer until his retirement two years ago, when he left due to ongoing physical and mental health issues. Here's Adam remembering back to when he was Up & Adam in the Morning!