Its for the City Festival July 6th:
Underworld Tickets for July 6 in SaSaZu are purchased exclusively in Ticketportal in 1150, - CZK and 100 pieces of VIP tickets for 2990, - CZK. VIP ticket for the best view of the stage and the comfort of your own bar, includes soft drinks, beer, wine and long drinks for free until midnight.
More info:
http://bit.ly/fltFBx
http://www.rave.cz/party/72573/after...city-festival/
http://www.rave.cz/clanek/15099/unde...-lete-v-praze/
http://www.cityfestival.cz/