Rihanna made history on Sunday night when she became the youngest performer ever to sell out the FNB Stadium in Johannesburg. But South African fans will remember the show for another reason: Concertgoers were in an uproar post-show, complaining that Rihanna's low energy and alleged lip-synching did not justify her high ticket prices.

"Ri-Ri Rip-Off!" blared the front page of The Star Johannesburg newspaper on Monday morning.