(Photo by MJ Kim/MPL Communications via Getty Images)When people talk about Paul McCartney’s greatest post-Beatles achievements, “Band on the Run” is almost always at the top of the list. Released in December 1973 as the title track from Wings’ third studio album, the song marked a turning point for both McCartney and his band. Despite the obstacles, “Band on the Run” became one of McCartney’s most ambitious compositions. Released as a single in April 1974, “Band on the Run” climbed to No. More than 50 years later, “Band on the Run” is widely regarded as the song that established Wings as far more than “Paul McCartney’s new band.”