There have been 1383 UK chart single number 1s since 1952.
Young has claimed that he started out making music in his parents' basement because of problems sleeping, and this song reflects on his insomnia. Young described it to Female First as, "a little song about bugs and not being able to fall asleep at night." This song got a lot of exposure when it was an iTunes' free single of the week on July 14th, 2009. The song helped Young establish a substantial fan base, especially in the Christian community, but he didn't follow up the song with similar hits, which doesn't bother him. "I don't really care if people only know me for 'Fireflies,'" Young told us. "I just do my own thing." This was the seventh American #1 of 2009 to also subsequently top the UK charts.