Rihanna hasn't invested in an Oyster card - yet

Rihanna snubbed luxury travel to use the London Underground for the 3rd time last night.

The We Found Love singer wore thigh-high boots, a large leather jacket and sunglasses for her trip to the O2, where she was seeing Drake in concert.

Rihanna, who was joined by a group of friends, was snapped riding the escalators in Waterloo station.  

The 23-year-old star used a paper ticket for her journey after declaring last month that she was 'working on' getting an Oyster card.

Rihanna's very familiar with the capital's tube system - she took the Jubilee line to her Brit Awards rehearsal last month and even rode it to her own concert at the O2 Arena in October to save time.

'There's so much traffic. It's an hour and a half to the O2 but it's 10-15 minutes on the Tube,' Rihanna recently told Jonathan Ross.

'Me and my fans went to the concert together. That was the coolest part.

'I enjoyed it. I'm not afraid of interacting with people.' 

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Esme Riley