B'Day (Irreplaceable, Beautiful Liar were huge here), IASF (who doesn't), The Fame (Monster), LOUD, The E.N.D.,Animal/Cannibal Idk exactly which was her 1st
The Fame (Monster) era left not a single weave unsnatched. It was the most exciting thing to happen to pop music since Britney's rise. I wonder when another pop star will take the stage again in that way...
The Fame + Monster
Teenage Dream
21 (This radio with basically just really old songs plays 3 songs from this album daily )
Born This Way was pretty huge here
LOUD / Talk That Talk (We're a Rihanna-country so she always smashes)
Animal
ADELE - 21
Katy Perry - Teenage Dream
Lady Gaga - The Fame Monster
Black Eyed Peas - The E.N.D.
Rihanna - Loud
Rihanna - Good Girl Gone Bad
Beyoncé - I Am... Sasha Fierce
Not exactly the biggest ones, but the ones you could find on radio every day or on tv.