Rihanna performed at the Heineken Opener Festival in Poland over the weekend, then put on a drunken show afterward as she was escorted out of the festival.

Rihanna had trouble standing up in the crowd when a security team decided to escort her out by the side of the stage.  That's where a fan caught the, less than sober RiRi zig zagging her way out of the show.

Some of her fans are defending her by saying that she was only acting, and putting on a front for the people.

If that's the case, she should have used some of that acting ability in 'Battleship'.