A few months <a href=" http://www.brainsatwork.nl/short-argument-essay ">chemical equation for photosythesis</a> At one extreme are the rockers, which roll with classic momentum worthy of "Jet" or "Back in the U.S.S.R." and suggest McCartney perhaps held a seance or two to connect with his riskier past. In an earlier, less fragmented landscape, the title track would be as big a hit as anything in Macca's voluminous arsenal. A joyful ode to crushes and the ways in which they rewire life, it features not only a singalong chorus but also, as a coda, a nod to the Beach Boys and classic doo-wop.