ESO (formerly known as Esoterica, typecast by the band as esOterica) were an Alternative Rock band from London, United Kingdom. They released three studio albums, "The Fool" in 2005, "The Riddle" in 2009 and "Nothing Left To Lose" in 2012. The latter of which was their début as ESO. They also released five singles as esOterica, "Don't Rely on Anyone" in 2005, "Tomorrow I Won't Remember", "Silence" in 2009 and "Scream" in 2010, and three singles as ESO, "We Are Watching You" and "The Divide" both in 2012 and "Brand New Suit" in 2013.

The first single for their third studio album, "We Are Watching You", was released on 2 July 2012, the single featured Mike Spreitzer who is the guitarist in metal band DevilDriver. The following single "The Divide" was released on 1 October 2012. The entire album, "Nothing Left To Lose", was released on 1 October 2012 via the band's official store and was later released in other stores from 22 October.