Tommaso Boddi/Getty ImagesSteve Harwell, who sang lead for Smash Mouth until his retirement in 2021, has entered hospice care as he struggles with late-stage liver failure, his manager confirmed on Sunday night.“Steve is resting at home being cared for by his fiancé and hospice care,” Robert Hayes told The Daily Beast in a statement. “My only additional comment is that we would hope that people would respect Steve and his family’s privacy during this difficult time.”Hayes told Billboard that tho