Harbhajan Singh Khalsa an informal "Holy Man Jam" at the University of Colorado at Boulder with Swami Satchidananda, Stephen Gaskin of The Farm in Tennessee, Zen Buddhist Bill Quan-roshi, and other local spiritual leaders. A few weeks later, he organized a gathering of spiritual teachers to engage and inspire the 200,000 attendees of the Atlanta International Pop Festival on the stage between the performances of the bands. All through the 1970s and 80s, as the Siri Singh Sahib of Sikh Dharma, Harbhajan Singh actively engaged in and chaired numerous inter-religious councils and forums, including the Inter-Religious Council of Southern California, the World Conference
Harbhajan Singh at The Oval in London, was partly attributed to his marketability. Harbhajan had generated a large personal following in the western London suburb of Southall, which boasts a majority Punjabi Sikh population, when he lived there in 1998 while training under Fred Titmus. In 2006 Harbhajan's endorsements generated controversy when he appeared without his turban in an advertisement for Royal Stag whisky. This angered many orthodox Sikhs, leading to anti-Harbhajan protests in the Sikh holy city of Amritsar, with effigies of Harbhajan being burnt. The Sikh clergy and Shiromani Gurdwara Prabandhak Committee demanded an apology from him and asked Seagram's