Madonna fans turned to social media to vent their frustrations after the Queen of Pop reportedly took to the stage more than an hour-and-a-half late at last night\'s performance in Abu Dhabi. Music lovers also complained of soaring temperatures at the UAE capital\'s Yas Island du Arena venue, taking to Twitter to express their dissatisfaction. “Madonna going on stage 90 minutes late is rude & disrespectful to her fans, especially when people have work the next day,” tweeted @FinancialUAE following the show. Others suggested that the heat and humidity during the performance affected people\'s enjoyment of the concert. Madonna\'s ninth to tour promoted her 12th studio album \'MDNA\'.