When you hear the term "Europop," this is the canon from whence the term sprang. With a continental sense of vocal neo-classicism, informed by just the right ethnic clichés (and oft wed to the era's insistent 4/4 disco beat) to make songs like "Mama Mia", "Fernando", "Chiquitita" and "Voulez-Vous" work on a global scale, the writing team of Bjorn Ulvaeus/Benny Anderson and their respective partners in music and life, Agnetha Faltskog and Frida Lyngstad, developed the seamless, wall-of-sound productions contained herein. Definitive Collection features a rare single remix of "Ring, Ring" and a 1979 promo-only extended mix of "Voulez-Vous" as bonus tracks, as well as a concise, illustrated history of the band and each track. --Jerry McCulley