Born in Kartaba, Joseph Sakr started as a school teacher teaching French. He later joined the Popular Lebanese Group accompanying performances of the Lebanese pan-Arab singer Fairuz and later on became a prominent singer with the Rahbani Brothers and appeared in a prominent or supporting roles in a great number of their musicals on stage including Lulu, Mays el Reem etc. His renditions "El haleh taabane, ya Laila", "Ana elli alayki meshtaq" and "'A hadeer el bosta" are renowned in Lebanon, the Levant and the Arab World. Sakr was also a regular feature in most of the stage plays of Ziad Rahbani.[2][3]