Do you like to sing your favorite songs when you go partying? Then try Quichos Var! Filled with locals who go there after a hard day working, you'll find people singing from traditional Mexican mariachi songs to the newest pop/rock songs. If you want to, you can try and sing anything you want.
When there are no people singing there is a band playing songs from the Rolling Stones to Rod Stewart. There is no entrance fee, but you'll have to but at least $15 worth of food or drinks.