[citation needed] He became a teacher of the Arabic language first in the town of Chebaa and then the Al Jaafarieh Schools-Tyr in Tyre.
Shamseddine was first featured at the Baalbek International Festival in the early 1950s, where he also presented poems.
His works included collaborations with composers and singers like Melhem Barakat, Zaki Nassif, the Rahbani brothers, Halim Al-Roumi, Sabah, Wadih Al Safi, and Philemon Wehbe.
[4] He held concerts in a number of countries and won awards in Brazil, France, Jordan, Lebanon, Egypt, Kuwait, and Syria.
Shamseddine later collapsed and died on stage during the performance due to a cardiac arrest which followed the attack.