According to NME, 65,000 people attended the London gig.
"A big hi to London, England and Hyde Park!" frontman Mick Jagger said as he began the show. "Anyone here that was here in 1969? Well hi, it's nice to see you again."
Reviewers called the legendary band's performance "sure-footed," "stunning" and "charismatic" despite their age.
"Fifty years after they began, what is amazing about the Rolling Stones is not only that this fractious band are still together, but that they can still generate such enormous amounts of emotion, be it love or hatred," the Guardian wrote.
Billboard's Paul Sexton said: "In a quarter-century of watching the Stones, I don't think I've ever seen them all smile so much on stage, nor maintain quite such momentum throughout two hours of classic hits."
Here's the Rolling Stone's Hyde Park performance of "Brown Sugar":
Hyde Park's lucky concertgoers posted photos of the show on Twitter:
Mick and the gang also reminisced about their previous Hyde Park performance in a YouTube video posted prior to the concert.