Y'hei Sh'lama Rabbah min sh'maya
יְהֵא שְׁלָמָא רַבָּא מִן שְׁמַיָּא
May there be abundant peace from heaven.
Translation from The Standard Prayer book by Simeon Singer (1915) (public domain)
Words taken from the Kaddish.
Music composed and first performed by The Chevra. The song has also been performed by other groups such as Pizmon, and is often sung at camps and youth groups (e.g. USY)