M.I. High S06E04 - The Face of Revenge

Shunned by the pop world for not having super star looks, embittered music mogul Cuthbert Peabody hijacks a new MI9 invention capable of changing a person's face into anyone elses. He then uses it against the people who he holds responsible for his failure - pop fans. The team must crack a highly elaborate musical code in order to put a stop to Peabody they must turn to an unlikely ally.