Carnival is a party that needs to be celebrated, and it needs to be celebrated good! In Prague they celebrate carnival really good.
I just went to some awesome club, Palaca Acropolis in the Zizkov neighborhood (of course in Prague), and the stage in this club was full of people partying.
They celebrated carnival with close to all musical instruments you can think of, and the result was very nice. It resembled a combination of the Blues Brothers and Vive la Fete, with the only difference that the music was played a lot faster : -p