Bad gal RiRi crashes sister wife Karrueche Tran's magazine cover release party...

Thursday night Karrueche Tran hosted a party at Playhouse in LA celebrating her Rolling Out Magazine cover [click here if you missed that], and guess who showed up? Rihanna!

Who knows what happened inside but on the way out Rihanna took a minute to cuss out some paps who dared ask for free concert tickets screaming, 

“Fuck all of yall! Yall muthafuckas better pay! Yall make enough money offa me! Bitches! Talking about free tickets!? Free tickets deez nutz!”

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