"Knowing Me, Knowing You" is a hit single recorded by Swedish pop group ABBA. The song was written by Benny Andersson, Björn Ulvaeus and Stig Anderson, with the lead vocal sung by Anni-Frid Lyngstad. During recording sessions, it had the working titles of "Ring It In" and "Number 1, Number 1". "Knowing Me, Knowing You" is featured on the Arrival album, and also on the Gold: Greatest Hits compilation.