WATCH: American Idol star Adam Lambert singing in Hebrew

Long before Adam Lambert became famous as an American Idol finalist, he performed Shir Lashalom at a 2005 tribute concert to slain Israeli Prime Minister Yitzhak Rabin.

Lambert, who has made it through to the last seven of the eighth season of American Idol, sang the famous peace anthem with Israeli-American singers Maya Haddi and Noa Dori.

Rabin also sang Shir Lashalom just before his assassination on November 4, 1995.

Lambert, who began his entertainment career as a stage actor aged 10, is being predicted by many to win the current season of American Idol, which ends on May 20.