Nick Krewen Music, Published on Sat Aug 09 2014 John Legend 2.5 stars At the Molson Amphitheatre, Aug. 8 John Legend is a man is without a care in the world, it seems. And why shouldn’t he be? Life is good for the Ohio born-and-bred singer and songwriter. Just under a year ago, he tied the knot with his Sports Illustrated model wife Chrissy Teigen. In a recording career that’s…