Solange Knowles cancels South Africa New Year's Eve concert due to illness

Kelly Rowland takinger her cute daughter for some shopping to the Grove Featuring: Solange Knowles Where: PARIS, France When: 05 Mar 2015 Credit: **Not available for publication in Italy**

Beyonce's sister, Solange Knowles, has apologized to fans on Instagram after she had to cancel a New Year's Eve concert in South Africa.

According to the famed singer's post, for the past five months she has "been quietly treating, and working through an Autonomic Disorder. It [sic] been a journey that hasn't been easy on me."

"Sometimes I feel cool, and other times not so cool at all. It's a complicated diagnoses, and I'm still learning so much myself, but right now, my doctors are not clearing me for such an extended lengthy flight, and doing a rigorous show right after."

She noted how disappointed she was to not have the chance to perform at the Afro Punk festival, "but I give you my ABSOLUTE WORD I will come back with AfroPunk and deliver this performance."

The festival in South Africa was serving as an extension of the Brooklyn celebration, now in its 12th year.