So You Say

"So You Say" is a song by British singer and songwriter Siobhán Donaghy. Written by Donaghy alongside producer James Sanger, the song was co-produced by Marius de Vries and released as the second single from her second studio album, Ghosts, on 16 June 2007 by Parlophone. Described by Donaghy as one of the most radio-friendly songs on Ghosts, the lyric describes the breakdown of her relationship with her first love. As she did not want to write a revengeful breakup song, Donaghy changed the subject's name to Adam in the lyric, in reference to the biblical first man.

The music video for the track was directed by Jamie Thraves. The psychological horror-themed video shows Donaghy pursuing a possessed man until she becomes possessed herself. The video was inspired by the work of David Lynch, specifically his film Inland Empire. The song received positive reviews upon release, but performed poorly on the UK Singles Chart, peaking at number 76. It performed better on the Scottish Singles Chart, where it peaked at number 29.