"Say It's Not True" is a song by Queen + Paul Rodgers, released on World AIDS Day, 1 December 2007 as the lead single from the supergroup's sole album, The Cosmos Rocks.

When played on the Rock the Cosmos Tour, the song was sung by Taylor, May and Rodgers as on the single.

The song was written for Nelson Mandela's AIDS foundation 46664, hence being performed live by Queen at the first 46664 concert on 29 November 2003.

Roger Taylor on vocals was additionally supported by David A. Stewart playing guitar.

[citation needed] Due to the single's availability to download for free, chart positions were severely affected particularly in Germany, France, the Netherlands and the UK where the sale of downloads account for much of a song's chart positioning.