"Bye Bye Babylon" is a song by Danish rock band Cryoshell, released as their debut single from their self-titled debut studio album on July 27, 2009.

Co-written by all three initial members of the band - Mikkel Maltha, Kasper Søderlund and Christine Lorentzen - the song was recorded between late 2008 and early 2009 and produced by Jacob Hansen. It was primarily used by toy manufacturer Lego for their Bionicle Glatorian and Glatorian Legends toy commercials in 2009 and as a licensed soundtrack to the animated film Bionicle: The Legend Reborn.

Two music videos for "Bye Bye Babylon" have been released; while one serves as an official video for Cryoshell, the second includes alternative scenes and clips from The Legend Reborn and serves as an extra on its DVD release.

"Bye Bye Babylon" was written by Mikkel Maltha, Kasper Søderlund and Christine Lorentzen in late 2008 and was recorded in the winter period of 2008 and early 2009 at Hansen Studios in Ribe, Denmark with producer Jacob Hansen.

As of 2010, three versions of the song exist; the original released as a single, a version featuring a slight lyric tweak featured in the toy manufacture Lego's Bionicle franchise, and an extended version which is included as the second track on Cryoshell's self-titled debut album.

"Bye Bye Babylon" was prominently used in the advertising campaign for Lego Bionicle's Glatorian and Glatorian Legends waves of toy sets released in the winter and summer periods of 2009 and featured in commercials promoting the sets as well as various online games featuring the Glatorian and Glatorian Legends characters. The song's lyric tweak version was released as a free download from the official Bionicle website on August 27, 2009 and is the fifth and since the original cancellation of the theme, last song by the band to be used in the Bionicle franchise.

"Bye Bye Babyon" also features in the ending credits of the 2009 animated film Bionicle: The Legend Reborn. The track's "Bionicle" music video is included as a bonus feature on the film's DVD release.

Rocktopia gave the song a positive review, applauding its "cascading riff and textured keys" and "bombastic chorus" and its sound of "an almost Egyptian-esque melody before a verse that drops in density with soft, chiming guitar". They also praised its upbeat-ness and how the listener "[would want to put the track] on full blast and walk around the day job office encouraging everyone to let it rip".

...
Wikipedia