Russian Roulette is the only song I've heard from Rated R, but its the most interesting and catchy song released by a female pop artist in 2009. Have you guys heard the Max Methods remix of Russian Roulette. Its even better than the original, the beat there is insane. Check it out on youtube.
Rated R should sell around 3 million by the end of the year, maybe Hard will keep sparking interest in the album, and Rude Boy in the spring will keep the album selling!