Business in the front…PARTY IN THE BACK!
But as soon as she turned around, her ENTIRE back was open and there was no evidence of a bra strap!
That's our RiRi! Bra, schma!
And instead of her usual heels, she opted for a pair of green JoyRich sneakers, which is kind of weird, because we know how much she loves stilettos.
Maybe she planned on dancing up a storm that night or something.