Going to a Barenaked Ladies concert is a little like going to a really good high school reunion. You see old friends, reminisce, talk about what you’ve been doing lately, share some laughs, and forget your worries for a while. For those thirty- and forty-somethings in the crowd Saturday night at the Louisville Palace where BNL played in support of their latest record Grinning Streak, it was both a trip back to high school and college and well as a glimpse into a bright future.