“Run Away With Me” marries euphoric Swedish dance-pop with a pressing nostalgia for your teenage years, a time when the littlest crushes felt like time bombs and a time Jepsen is really, really, really skilled at evoking. In that sense, it’s “Teenage Dream 2.0,” right down to a bridge so catchy she has to repeat it twice—not that Jepsen needs such hype at this point.