Whitney Houston was booed by fans as she played her first live date in the UK in over a decade./nThe US pop superstar belatedly kicked off the European leg of her comeback world tour at the LG Arena in Birmingham last night./nBut the show has come under fire over the quality of her vocals and an extended costume change which saw the singer leave the stage and her brother take over./n"It's the worst concert I've ever been to in my life," complained one fan after the concert, while another said there was "too much talking and not enough singing"./n"I could hear you getting p***ed off," Whitney told fans when she finally resumed the gig after a 20-minute absence./nHer ‘Nothing But Love' tour has already been blighted by problems, with a string of shows postponed on doctor's orders./nLast week's opening date in Paris, France had to be cancelled when Houston succumbed to an upper respiratory infection [Daily Mail].