`` Dancing Queen '' sold more than 500,000 digital copies in the United States in August 2008 .
Also in August 2008 , `` Dancing Queen '' surpassed the 500,000 mark for digital sales in the United States ( 512,000 ) .In August 2012 , listeners to the 1970s-themed UK radio station `` Smooth 70s '' voted `` Dancing Queen '' as their favourite hit of the decade .
Dancing Queen