Geoffroy Mussard (born in 1966), known by his stage name Shurik'n Chang-Ti, is a French hip hop artist from Marseille. He is one of the members of the highly successful group IAM, as well as a major solo artist. With his brother Faf Larage (Raphaël Mussard), he also is a member of the group La Garde.

Mussard was born in Marseille on 11 March 1966, with Malagasy and Réunionnais origins. In 1988, he met Akhenaton, with whom he formed IAM. Mussard adopted the stage name Shurik'n Chang-Ti, reflecting his interest in Oriental culture and his background in martial arts, such as judo, karate and kung fu. IAM released its first album, De la Planète Mars, in 1990.