Piano,Vocal,Voice - Level 3 - Digital Download SKU: A0.510719 By Justin Bieber. By Ashley Boyd, Ashley C Boyd, Ashley Sadler, Daniel Hackett, Jason Boyd, Justin Bieber, and Sasha Sirota. Arranged by Mario Stallbaumer. Pop. Score. 7 pages. Mario Stallbaumer #5742071. Published by Mario Stallbaumer (A0.510719). Here's how to play Yummy by Justin Bieber on piano!