The Spice Girls have hit back at reports that they mimed their way through their set on the opening night of their world tour in Vancouver on Sunday.

The quintet insisted that they sang live, despite a number of critics accusing them of lip-synching to a backing track during the show in front of 15,000 fans.

A spokesperson for the group said: "All of the girls sang live. There is a click track for the band to keep them in time, which is standard, but all of the girls' vocals were live."

San Jose, California is the next stop on the Spice Girls' tour. They will arrive back in Britain on 15 December when they will play London's O2 Arena followed by a further 16 shows in London before heading for Manchester.