“Intro”, a simple, two minute instrumental song is easily The xx’s most popular song. As of August 2017, it’s their most streamed song on Spotify, racking up over 200 million streams. Notably, Rihanna sampled it for one of her songs, BBC used it as the soundtrack for their 2010 election coverage, and it was used in the coverage of many TV shows, including Law and Order.
In 2017, Spotify released a list of the top 10 songs most frequently appearing in user-created “Sex” playlists globally. Intro appeared on the list, making it — by the standards of Spotify users — one of the sexiest songs in the world.