Hassan, aged 73, considered the face of Hindu-Muslim unity in South Africa, died of heart attack on Saturday.
Hassan had planned a series of comeback shows over the next few months.
He started performing at the age of 14, belting out cover versions of popular songs of singers like Elvis Presley and Cliff Richard among others. He later shifted his skills to singing in Hindi, Tamil, Telugu, Gujarati, Urdu and the indigenous languages -- Afrikaans, Zulu and Sesotho.
In the early 1990's, boosted by the national public broadcast Indian radio station Lotus, Hassan became a household name with a song about how his wife had reacted in Tamil when she saw him with an another girl.
The song remains a favourite of bands playing at Indian weddings here, decades later.
Like almost all South African Indian musicians, Hassan could not afford to depend financially on his performances only, so he also had business interests alongside the singing profession.
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