Samuël Adebiyi, better known by his stage name Féfé (formerly Féniksi), is a French singer and rapper. Féfé was born in Clichy, Hauts-de-Seine, France on 18 January 1976 to Yoruba parents from Nigeria.

He formed the rap group OFX with KLR in 1996 where Adebiyi was known as PHNX (also read as Féniksi). The two released the maxi Je n'ose y croire, after which a third member Vicelow joined in. The trio made a number of appearances on various compilations and mixtapes.