Singh Kaur (1958–1998) was an American vocalist renowned for her ethereal voice and pioneering blend of sacred Sikh mantras with contemporary Western music. Collaborating closely with composer Amar Singh Khalsa, she recorded the beloved *Crimson Series*, which became a cornerstone of modern mantra and new age music. Rooted in kundalini yoga traditions and illuminated by her emotive vocal purity, Singh Kaur’s work continues to inspire spiritual seekers and musicians worldwide, leaving an enduring legacy of devotion, serenity, and transcendent sound.