 Author John Einarson has noted that during this period of their career , the Byrds enjoyed tremendous popularity among teenage pop fans , with their music receiving widespread airplay on Top 40 radio and their faces adorning countless teen magazines . Much was made at the time of the Byrds ' unconventional dress sense , with their casual attire strikingly at odds with the prevailing trend for uniformity among contemporary beat groups . With all five members sporting Beatlesque moptop haircuts , Crosby dressed in a striking green suede cape , and McGuinn wearing a pair of distinctive rectangular " granny glasses " , the band exuded California cool , while also looking suitably non @-@ conformist . In particular , McGuinn 's distinctive rectangular spectacles would go on to become popular among members of the burgeoning hippie counterculture in the United States . 
