In reply to D.

WHO GIVES A FLYING FUCK?! LMAO
You cant even compare the two. Rihanna is on her fucking 7-8th album. Shes had time to solidify her star power and become a international superstar. This is Nicki's second album. Shes just getting started.
So lets compare Nicki's second album to Rihanna's second album.
A girl like Me: Released in 2006
sales as of 2010: 1.3m in the US
Debut: 115,000

PFRR: Released 2012
sales as of 2012: 679,000 in the US
Debut: 253,000 (2x+ rihanna's debut lmao)
Rihanna aint shit. lmao