After performing together at the Jingle Ball on Friday, Rihanna and Chris Brown took the stage again last night in Chicago. Rihanna showed off her long legs in leather pants and your favorite short hair of the year — it's no wonder Chris couldn't resist getting close to his girl. Rihanna is rumored to be headlining the RIAA's inaugural charity ball and if so, maybe she'll bring Obama-fan Chris along to celebrate.

To see more photos of Rihanna and Chris just