Dido wrote this song about how she does not always do the right thing. Some of the lines were taken from a postcard she wrote to her boyfriend, Bob. She asked for the postcard back so she could use it for the lyrics.
This was written 5 years before it was released while Dido was touring with her brother's band, Fearless. Most people didn't hear the song until 2001 - the album was out for almost 2 years before this became a hit.
Dido was a pretty big deal back in the day: No Angel was the world's top selling album in 2001 (8.6 million copies sold). It also became the UK's biggest-selling debut album by a female artist.
Robin Thicke and his mom, Gloria Loring are the first the first ever mother-and-son to have both tallied top 10 singles on the Hot 100 as solo artists or duos. Loring reached #2 with Carl Anderson in 1986 with "Friends and Lovers" and Thicke topped the chart in 2013 with "Blurred Lines."