blues artist performs on stage during the opening concert of his tour
{"Image ImageDescription": "AMSTERDAM, NETHERLANDS - JANUARY 13: John Mayer performs on stage during the opening concert of his European tour at Heineken Music Hall on January 13, 2010 in Amsterdam, Netherlands. (Photo by Paul Bergen/Redferns)", "Image Copyright": "2010 Paul Bergen", "Image XResolution": "300", "Image YResolution": "300"}