Jam Hsiao was a boss in Plants vs. Zombies: All Stars during the Jam Hsiao event. He had four stages of health. His ability was to deal damage to two enemies. His boss skill was to play a grand piano that deals damage to all plants. He had three kinds of pianos and he could use one of them every four turns.
Jam Hsiao is based on a Taiwanese singer and actor with the same name and general appearance, though zombified.