Inside Lady Gaga’s epic Mayhem Ball Tour leaving fans speechless as she kicks off global trek in Las Vegas

LADY GAGA proved she is still at the top of her game on the opening night of her Mayhem Ball tour – which was as much performance art as power pop.The Bad Romance singer took over the T-Mobile Arena in Las Vegas to kick off the global trek, bringing things back to her old-school, dark-pop roots – with jaw-dropping visuals.The show had a string of costume changes, multiple wigs and seriously impressive choreographyGettyHer new show included a 12-foot-high skullGettyIn one segment, Gag