"What You Know" is a song by Northern Irish band Two Door Cinema Club from their debut studio album, Tourist History (2010).

The song was written by Alex Trimble, Kevin Baird, and Sam Halliday and was produced by Eliot James.

[2] The video was directed by Lope Serrano of the Barcelona-based creative collective and directors known as Canada and features female Spanish dancers.

[3] The dancers' names are: Patricia Suárez, Laia Santanach, Naya Monzón, Alicia Atienza, Adriana Barrabés, Marina Cardona.

[6] In Chile, the song was used in weather news Chilean television show El Tiempo en Meganoticias.