One of the places to visit at Újezd is definitely Popocafépetl. There are actually five Cafés of this name in Prague (Na Struze, Italská, Melantrichova, Michalská) – this is the only one which works as a music club, though.
When you find the a bit hollow entrance and walk down the stairs to what used to be a mid-age cellar, you will immediately smell the unmistakable odour. Then you walk into the small and only mildly-lit club with an original and sort of old-school decoration and the party can begin. You can order a coffee, beer, wine or basically any cocktail you name for a very reasonable price.
Virtually every day there is a concert on. Pick yours: Fridays and Saturdays there will be a DJ playing 80′s, 90′s and dance music, live gypsy bands play Sundays, Latino Mondays and other live concerts follow the other days. Just check out the program on their website. The entry is usually free or symbolic. I would just recommend making a reservation since the small club is often very crowded.
Last but not least, Popocafepetl doesn’t basically know anything like a rigid closing-time. They just close when there are not many people left – which can be either at 02:00 or 05:00. Therefore, it’s also a great place to hang out after you’ve been kicked out from somewhere else and still feel like partying…