The idea of a band doing a 50-song set is enough to make even the most ardent concert-goer a little nervous. Fifty songs? Can any band maintain the level of energy and spirit to make that work? Factor in the band members' median age, 70, and those doubts are even more compounded. But despite all the unlikelihoods, The Beach Boys' 50th Anniversary concert at Grand Canyon University Arena wasn't just passable. It was tremendous. With all surviving original members, Brian Wilson, Al Jardine, Mike Love, and David Marks, the boys nailed every song they took on — even the dreaded and rightfully reviled "Kokomo." The show was a rare thing in the world of anniversary and nostalgia cash grabs: a bona fide retrospective look at one of the pop music's greatest bands, a powerful stroll through their catalog, and, above all, a tremendously enjoyable show.