David Haas is a prominent figure in English-language Catholic liturgical music, known for composing joyful and accessible works for congregational singing. "Alleluia! Let us rejoice!" exemplifies his signature style, blending traditional hymnody with contemporary rhythmic sensibilities to foster active participation during worship. The track appears on the compilation Best of David Haas, Vol. 1: Blest Are They, released in 1995, which gathers some of his most enduring compositions. Haas's body of work frequently emphasizes themes of praise, resurrection, and communal faith, making his songs staples in parishes across the English-speaking world. This particular recording captures the celebratory spirit central to his musical identity, offering a vibrant contribution to the modern liturgical repertoire that continues to resonate with choirs and congregations alike.