While much is written about the cultural influence of the vocalist-driven girl groups and female singers of the early-to-mid-1960s, an air of mystery continues to shroud this era's all-girl rock bands-in the UK, US, and worldwide-that performed, recorded, and often wrote their own material. Influenced by the Beatles and the British beat boom that followed, these bands are an important missing link in rock music history, as they epitomize a less overtly gendered, if short-lived, period of the genre. In an era between Betty Friedan's 1963 Feminine Mystique and the changes to come with 1970s second-wave feminism, a handful of musically minded young women were determined to transform their Beatles fandom in order to become co-creators of what was not yet a resolutely masculinist music scene.