Hip-Hop Clubs in Krakow?

Hi
I´m going to spend a couple of days in Krakow in march and am looking for a good place to have some polish beers and party.
Preferably Hip Hop and R´n´B, since i have a lot to do with electronical music in my line of work.
Can anybody suggest something?

Thanks in advance.
Berni

You'll find a couple good ones in the main square area. But they play Polish hip-hop mostly, but it's pretty good too.