“A musical adventuress and mezzo soprano with an outstanding vocal range, Sibongile Khumalo has been hailed the queen of South African jazz, the Empress of Soul, a diva for the 21st century. If it’s star quality you’re after, then look no further.”
- Unknown, 2007

“Sibongile Khumalo is an extraordinarily versatile singer, as comfortable with Jack DeJohnette as she is in the role of Bizet’s Carmen or singing Brahms Alto Rhapsody.”
 - Willard Jenkins, The Independent Ear, 2007

“Mezzo-soprano Sibongile Khumalo (no relation to the composer) was compelling as Princess Magogo, Managing to give life and feeling to a character completely unfamiliar to American audiences. Her singing voice was powerful and warm, with a conversational flexibility. In the stretches of spoken dialog, she was both earthy and regal.”
-Wynne Delacoma, Chicago Sun Times, 2004

“…Sibongile’s voice is special: it has a warm and vibrant individual timbre which caresses the ear and penetrates the heart of the listener whether produced at its softest or loudest dynamic level. It is a voice of great power and huge range, with a remarkable and enviable evenness of colouring throughout its range, from that of a commanding contralto to the heights of a dramatic mezzo soprano.
-Angelo Gobbatto, 2003

“Khumalo’s voice, as usual, mixes silk, silver and earth in magical combinations…”
- Gwen Ansell, Weekly Mail, 1996

“Asked what he thought of Sibongile Khumalo, one of the soloists during the performance of the Messiah, Lord Menuhins face lit up enthusiastically.”
- Fiona Chisholm, Cape Times, 1995

“Her artistry is such a massive, glorious, multi-faceted thing that one battles to find words to express it’s full range.”
Barry Ronge, Sunday Times, 1993  

“You only have to spend five minutes in her company to feel as if you have known her for years. See her on stage, and you don’t want the experience to end.”
- Gillian Anstey, Sunday Times, 1993

“The modesty of Sibongile Khumalo belies her immense talent as a musician, singer and tutor.”
- Victor Metsoamere, Sowetan, 1992

“The Chief source of delight is Sibongile Khumalo, a great, glorious mound of womanhood with a voice that resounds like the chambers of heaven. . .
Her voice is like a viola, able to go anywhere and do anything.”
- Barry Ronge, Sunday Times, 1989