Local Night Clubs

I would like to find a nice bar that plays a lot of good rock/mainstream rap/hip-hop…fun music to dance to. Also, some place that is not a dive. Preferable Loop area. I have had no luck finding anything like this. Please help! Thanks in advance!
okay. well i am going to be in town for Lollapalooza and I was hoping to find a place to hit after the show are done. I had considered HoB but they aren’t open very late…and I don’t exactly want to go see another live show. I did try the yellow pages but the results that came up weren’t places that really matched my search, so I thought I would ask real people.