Rihanna

After taking the Eurostar into town earlier in the day, Rihanna got busy with her “Rated R” promotional efforts in London on Friday.

The Barbadian beauty ended up changing ensembles, then visiting FHM studios as she boosts interest in her upcoming album – which hits stores on November 23.

Meanwhile, Rihanna is also fresh off the release of her first single, Russian Roulette, which has shot up 66 spots to crack the Billboard Top 10 at the No. 9 slot.

The video has just been made available on the Web, with its TV debut scheduled to take place on 20/20 later tonight.