The moment Head Games begins, a nastier, grittier tone is established, and it becomes apparent that Foreigner is bringing something new to the table. Namely, an edgier, leaner sound built around stronger guitars and harder rhythms. The heaviest record of the band's career, the 1979 effort functions as irrefutable proof that the quintet rocked as hard as anybody in the mainstream and did so without losing sight of the melodies that put it at the top of the charts. And with Head Games, there Foreigner would stay.