Birthday is a 2007 EP released by The Crüxshadows.

It is the second single release from the 2007 album DreamCypher.

A fan favorite, the band's wish was granted when it outsold their previous single/EP, Sophia.

To the band's delight, Birthday hit #1 on the Hot Dance Singles Sales chart and #2 on the Hot 100 Singles Sales chart on September 13, 2007, while Sophia hit again at #3 and #23, respectively.

This 2000s pop album–related article is a stub.