Photo credit: RDNE Stock project Every singer starts somewhere. Maybe it’s belting your lungs out at karaoke, maybe it’s a school choir audition, or maybe it’s your bathroom echo convincing you you’re the next Adele. But somewhere along the way, you’ll hear a few “truths” about singing that sound convincing — until your vocal coach gives you that look .   Today, we’re clearing the air (and the throat). From breathing myths to diva diets, let’s bust some of the biggest vocal