The British singer was contacted by the hip-hop star out of the blue in 1999 when he sent her a note praising her song and asking for permission to use it in his next single.
Stan went on to become a huge international hit, topping the charts in more than a dozen countries and exposing Dido to a wider global audience - but she admits she was initially fearful of associating with the rapper.
The White Flag hitmaker tells British magazine Radar, "I got a letter from him out of the blue with a Cd just saying: 'I love the track. Can I use it?' I was a proper fan but I did think for a moment: 'What's he going to have done with the song?' But it just sounded amazing."