Label: Warner On 2013's Heartthrob, the duo dives into the pop mainstream headfirst. Working mainly with producer Greg Kurstin, the duo's approach is slick and punchy with lots of synthesizers, programmed drums, and a sound that falls somewhere between Robyn and Katy Perry on the pop spectrum. While longtime fans might be a bit perplexed by the shift, they will find plenty of familiar ground to cling to as the record plays and the smartly written and tear-filled songs follow one after another. Indeed, the core musical values that have always made Tegan and Sara special, like their ability to write super-hooky melodies, their willingness to strip their emotions bare, and their powerful voices, remain fully intact on Heartthrob, and the shiny package that surrounds them only seems to have made their collective impact stronger. One would have to go a long way to find a pop record that is as easy to swallow, yet contains such depth.