Johnny Mercer and The Pied Pipers first recorded the song “Ac-Cent-Tchu-Ate the Positive” in 1944, and many stars have covered the tune–Bing Crosby, Ella Fitzgerald, Paul McCartney, Barry Manilow, and, for you punk fans, The Vindictives, just to name a few. But for David Corbin, it was a version by…