The song "Still Grey" featured guest guitarist Evan Short of Concord Dawn, and was included on the CD edition of Hold Your Colour, released in July 2005.

[1] Unlike Pendulum's previous single, "Back 2 You" / "Still Grey" did not receive much publicity or recognition, and consequently neither track has been subject to many critical reviews.

This is particularly true of "Back 2 You", which has not been featured on any studio or compilation album released by Pendulum to date.

[4] "Back 2 You" / "Still Grey" was released on 22 March 2004 as a standard 12-inch single by independent label Timeless Recordings.

"Back 2 You" was written and produced by Rob Swire, Paul Harding, and Gareth McGrillen.