Kaddish is a hymn of praises to G-d found in the Jewish prayer service. The central theme of the Kaddish is the magnification and sanctification of G-d's name. In the liturgy different versions of the Kaddish are used functionally as separators between sections of the service. The Israeli singer Ofra Haza sings Kaddish in her flawless voice.
"Im Nin'alu" is a hebrew poem by the 17th century's Yemenite Rabbi Shalom Shabazi, which has later been put to music and was sung by Israeli singer Ofra Haza, among others. Yemenite Jews have been singing it in various celebrations, mainly weddings. Most of the song is about the angels praising and singing to god.