David Hasselhoff played a brief but memorable cameo in “Guardians of the Galaxy Vol. 2” and lent his voice to the wonderfully cheesy disco song “Guardians Inferno,” which played over the movie’s end ...

The Summer of Love went up in smoke with Altamont, but where did peace and love go in the aftermath? As the 1960s faded into a new decade, the world began to come down from years of war and social ...

The 1970s. What a decade for music! It was a wild, experimental, and incredibly fertile period that saw genres explode, artists push boundaries, and hit after hit cascade from radios across the globe.