The Bajan babe, who has previously travelled on the underground to her own stint at the venue last year, boarded a Jubilee line train from Waterloo to North Greenwhich - surprising many passengers.
Not one to shy away from the cameras, RiRi wore hot pants, thigh-high boots and a flame print t-shirt to the gig, where the likes of Tulisa Contostavlos, Florence Welch and JLS were all in attendance.
Once Drizzy's show was over, the 24-year old once again hopped on the tube for the Take Care rapper's after party at Mayfair haunt, Low.
Earlier this month, Rihanna confessed in an interview with Jonathan Ross that she enjoyed getting the tube when in the capital as she likes interacting with her fans.
She explained: "There is so much traffic, it is an hour-and-a-half approximately to the London O2 every time and it is 10-15 minutes on the Tube,
"I hate waking up early and I am always late so the Tube is 10 minutes. Me and my fans all went to the concert, that was the coolest part definitely,
"I enjoyed it, I was painless. I'm not afraid of interacting with people, it's harmless. I feel people only act crazy when you treat them crazy."
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