Geoffroy Mussard (born in 1966), known by his stage name Shurik'n Chang-Ti, is a French hip hop recording artist from Marseille's area. 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 Miramas 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.

After three albums with IAM, Shurik'n decided to start pursuing a solo career with his 1998 album Où je vis. The album debuted atop the French album chart. In 1997 he had already collaborated with his brother on the compilation disc Chroniques de Mars, and the group released its album La Garde in 2000. Shurik'n also continued working with IAM, which released its fifth album, Revoir un printemps, in 2003.