Rihanna puts her friend in a headlock on the set of 'The End Of The World.'

We're glad to see that Rihanna isn't always brooding at the camera or posing with her shirt off -- girl can also get a little goofy sometimes. The "Where Have You Been" singer is currently on set in New Orlean filming the new Seth Rogan directorial debut, "The End Of The World," and RiRi took a little time out to put her friend in a headlock. Joking or not, that's not a position we want to find ourselves in -- she takes no prisoners!

Also appearing in the movie is James Franco (BOI-OI-OING), and it should be known that he was actually offered the role of the crazy boyfriend in Rihanna's "We Found Love" video. WE KNOW -- and we didn't think that video could get any better. James told MTV News, "She actually asked me to be in that video, the one with the relationship that gets crazy. I couldn't do it. But, I guess, I hope that that means there's mutual love between us." OMG PLZ DATE, Rihanna and James. We love that idea.

Photo credit: Splash News