Concert Pipeline’s three hundred seventy first episode featuring Smash Mouth, in which we chat with Zach Goode, the band’s new lead singer, about performing in Grease and RENT, the progress from his old bands Ghoulspoon to Devided by Zero, his Weezer cover band “Geezer,” the audition process for Smash Mouth, playing his biggest show ever in Mexico, and covering “Never Gonna Give You Up” by Rick Astley.