WRWWR was huge when it was released, unlike the other options -- sans Just Dance.
PoM comes to mind first, since it's the newest, but I'll will have to say that song, SOS, and Check are all pretty forgettable. I don't even think Rih performs that song anymore.
sweetheart, don't even compare a debut single to the lead single of a sophomore album/EP extension of the first album
I remember COI because it used to be ****ing EVERWHERE back in '06, I remember WRWWR because I kept hearing about it's #1 debut, I barely remember SOS going and I know POM because it's recent. I honestly didn't realize/know Just Dance went #1.
I can't remember I didn't know Check On It was.. Check On It. I mean LOL I didn't know that song was a Beyoncé's song. It was such a hit. Can I change my vote? I wanna vote for We Are Who We Are.