"My Strange Addiction" (stylized in all lowercase) is a song by American singer Billie Eilish from her debut studio album, When We All Fall Asleep, Where Do We Go? (2019). It was written by her brother Finneas O'Connell, who also produced the song. The song has been certified platinum in the US and Canada and has reached number 43 on the US Billboard Hot 100. It also peaked at number 12 in Australia, 21 in Canada and New Zealand, 39 in Ireland and Norway, 46 in Sweden, 51 in the Netherlands and at 100 in Italy.
The song uses clips from Threat Level Midnight, an episode of The Office, a comedy show that previously aired on NBC. In an interview, Billie Eilish stated that she had been a "superfan" of the show. In a quote, Eilish stated that, when creating the song, she thought that the beat produced was similar to that of an instrumental track used within the movie's Scarn Dance scene. Subsequently, she decided to use quotes from the movie; instead of going through the normal routes to get permission to use the audio in the song, she instead ripped the audio from the show. She stated that the reason for doing including clips from The Office was because she considered the show to be her strange addiction.
Credits adapted from Tidal and the liner notes of When We All Fall Asleep, Where Do We Go?.