Co-vocalist Hilary Scott told CMT News that this cut is Lady A colleague Charles Kelley's song to his wife, whom he married in the summer of 2009. She added: "There's a line that goes: 'Barefoot beauty with eyes that blue/Sunshine sure looks good on you.' He was thinking about their wedding day because he had the picture up on his screensaver on his computer as we were writing it."
ABBA's Bjorn Ulvaeus and Benny Andersson conceived "Dancing Queen" as a dance song with the working title "Boogaloo," drawing inspiration from the 1974 George McCrae disco hit "Rock Your Baby." Their manager Stig Anderson came up with the title "Dancing Queen."