Girl Groups of the 1960s can be divided into two styles -- those who were prissy and upheld the traditional image of the female, and those who were seen as bad girls. The gum-smacking, motorcycle-riding, leather jacket-wearing Shangri-Las epitomized the latter. They were thrust into the national spotlight in 1964 with the melodramatic ballad "Remember (Walking in the Sand)," and soon after, "Leader of the Pack" -- with its spine-tingling motorcycle samples and an oddly morbid theme ...  [+]