Complex sentence: Together they performed a song Called "Ray Of Hope" which was written by the President of Israel Shimon Peres and was composed By Liel, Together they surprised the President and performed it for the first time ever.
Split into simpler sentences: Together they performed a song Called "Ray Of Hope" which was written by the President of Israel Shimon Peres and was composed By Liel. They surprised the President and performed it there for the first time ever.