With a catalog of songs that reaches back 50 years, Van Morrison always delivers a concert that’s impossible to predict for his many ticket buyers. The iconic Northern Ireland native has, of course, recorded classic albums like Moondance and Astral Weeks, and timeless singles like "Brown Eyed Girl," "Domino," and "Wild Night." But he's released well over 30 albums during the course of his career, building a repertoire that veers from Celtic music to folk to blues to covers of standards. His focus on any given night could switch on the dime as he follows his muse wherever it takes him. Fans fill seats to see Van Morrison on tour because the Rock and Roll Hall of Famer is a master of making his own whatever genre or song he tackles. His unmistakable voice is a reedy and expressive growl, and his delivery -- which is constantly evolving -- conjures elements of jazz, blues and gospel. His latest album, 2012's Born to Sing: No Plan B, marked his first batch of original songs in five years and was hailed by many critics as recalling his much-heralded recordings of the late '60s and early '70s. It peaked at No. 10 on the Billboard 200 chart.