VIDEO : Madonna Facing Huge Slump in Ticket Sales

Pop superstar Madonna is battling a huge slump in ticket sales as her current world tour is reportedly making up to 50 percent less money than her last one. The ?Holiday? singer launched her Rebel Heart shows in Montreal, Canada in September, three years after she last hit the road with her MDNA tour. However, newly-released figures show Madonna?s latest trek is struggling to match the box office receipts she scored in 2012 as sales have dropped considerably in many stops on the Rebel Heart tour. Madonna brought in around $3.4 million for her two nights in Toronto, Canada last month, which is less than half of the $7.5 million she made for a pair of shows at the same venue in the city in 2012.