Today in music: Knowing Me, Knowing You, by ABBA from the 1976 album Arrival. Released 50 years ago today, it was the group’s fourth studio album #Music #Knowingmeknowingyou #ABBA #Arrival #pop #dance #disco #1970s #70s #1970smusic #70smusic #BennyAndersson #BjornUlvaeus #AgnethaFältskog