The 23-year-old made headlines once again as she traveled to the venue Wednesday -- not by private car as you would expect, but by tube, the nickname for the city's London Underground subway system. She even posed for photos with fans!
Samir Hussein/WireImage.com - October 5, 2011
Rihanna Gets 'Loud' in London
The singer's tour stops at the O2 Arena in England's capital city.