Anni-Frida Lyngstad and Agnetha Fältskog, ABBA’s radiant frontwomen, were at their creative peak in the late 1970s, shaping the group’s unmistakable blend of harmony, glamour, and emotional depth. Their contrasting yet perfectly complementary voices—Agnetha’s soaring clarity and Frida’s warm, velvety tone—helped define global hits like “Dancing Queen,” “Knowing Me, Knowing You,” and “Take a Chance on Me.” Beyond the studio, their striking stage presence and shimmering style captured the era’s sp