The Eurythmics' "Sweet Dreams (Are Made Of This)" came top of a 2013 Spotify poll to find out which songs music fans most commonly hear people singing incorrectly. Many believe Annie Lennox is singing: "Sweet dreams are made of cheese, who am I to disagree?"
"Crank That (Soulja Boy)" was the most successful digital track of 2007 in the US with 2,909,000 downloads. On January 6, 2008 it became the first song ever to sell 3 million digital copies in the States.
The lyrics for "Mary, Did You Know?" were written by Christian singer and comedian Mark Lowry, after his pastor asked him to write a Christmas musical for their church. Southern gospel musician Buddy Greene later added music to his words.