Smash Mouth have been quiet in the face of widespread criticism after footage spread of them performing at South Dakota's Sturgis Motorcycle Rally earlier this month, including a video of frontman Steve Harwell saying, "We're all here together tonight. Fuck that COVID shit," in front of a packed, maskless crowd. They've started posting to social media again, though, including sharing an Instagram of some "recent fan mail," that includes a letter with the words "selfish" and "fuckers" visible, and a cut-up CD.