I feel like almost every yandere hazbin hotel character has the capacity to do this but uh

ALASTOR AND ROSIE DEFINITELY FORCE YOUR ASS TO LEARN HOW TO SING

Rosie will (somewhat) reign Alastor in from being TOO mean to you but, will he still make you cry a lil bit during your forced vocal lessons with his smart remarks? Absolutely! It's just such adorable and charming entertainment for him when your voice cracks and your lips wobble and Rosie gives him a playful shove to "stop being such a bully" and he joyfully remarks that you're just a sensitive soul

Awww, you're embarrassed singing in front of other people? Too bad! They love hearing your lovely voice whether you're perfectly pitched or bawling your eyes out for them to leave you alone! You just sound so wonderful, it's not their fault for wanting to be a little greedy and teach you how to make as many different sounds as possible!