Get ready for four decades of Madonna’s hits. On Monday the superstar singer announced dates for “The Celebration Tour,” which according to her site, “will take us on Madonna’s artistic journey through four decades and pays respect to the city of New York where her career in music began.” The world will find out as tickets go on sale Friday for the 35 city global tour which kicks off July 15 at Rogers Arena in Vancouver, BC and will include stops in Detroit, Chicago, New York, Miami, Los Angeles.-CNN