Could Rihanna sing half of 4?
Lets answer THAT first.

Yes. It would be deemed a flop. Especially for Rihanna since she gets at least 1 #1 and multiple top 10s each era.

Heard of Rated R?

Acclaimed underperforming fourth album. Pretty similar

She'd fail delivering such a quality piece of work in the first place.

4 would be Rihanna's 1st #1 album.
Her highest selling first week.
Her most successful tour and her most critically acclaimed era.

She can dream.

Rated R sold more than 4 with much less promo and had a global smash (Rude Boy) that perched at #1 on the Hot 100 for 5 consecutive weeks. 4's best-charting song peaked at #16 and was only one of two top 20 hits (the other being Love On Top after Beyonce revealed her pregnancy while performing the song at the VMAs.

yeah
no top tens is a flop for rih
she has had at least one and sometimes multiple number ones every album.

It already happened with her 4th album, Rated R

Noone wants an album like 4 from Rihanna in the 1st place It would be the 1st Rihanna album that I didn't buy.

How she would flop with 6 smash singles, unlike "4" where all flopped

She'd never.

Read the updated title since everyone ran in here saying "rAted R!!1!111!"

My opportunity being the acclaimed undeperforming fourth era

It was something different for ha and she wasn't chasing hits as much, it was loved by many (the only RiRi album I own physically ). I'm not even dragging it. I don't need the whole lecture sis

She had her 4 era first back in 09 and its also her 4th album

Music Of The Sun says hihi