Batman Is, In Fact, A Little Bit Rock 'N' Roll

Little known fact: Batman wears purple socks under those boots.

...Yeah, this is what you call a "topical reference."

Source: World's Finest Comics #261 (February-March 1980). Writer: Denny O'Neil. Penciller: Rich Buckler. Inker: Dick Giordano. Colorist: Gene D'Angelo. Letterer: Ben Oda. "Guest Editor": Julius Schwartz. Info resource: GCD. Batman & artwork &copy DC COMICS.