Theory of Everything is the second studio album by Australian indie rock band Children Collide.

The album was recorded in Los Angeles and Melbourne, Australia.

It was produced by Rob Schnapf in the United States and Woody Annison in Melbourne.

The first single, "Jellylegs", was released on 18 June 2010, and reached number 72 on the Australian ARIA Charts.

[citation needed] Several different special editions of the album were made available for pre-orders via the Children Collide website and other online stores.