Sonisphere Festival
music festival
The Sonisphere Festival was a touring rock music festival which took place across Europe between the months of June and August. The festival was owned by John Jackson and Kilimanjaro Live. It was jointly promoted by K2 and Kilimanjaro Live. It hosted heavy metal bands such as Iron Maiden, Metallica, Mötley Crüe, Slayer, Judas Priest, Megadeth, Avenged Sevenfold and Babymetal (the latter group would make their UK debut at the 2014 event).
The festival has not taken place in the UK since 2014. Stuart Galbraith, chief executive officer of Kilimanjaro Live, revealed in 2018 that Sonisphere will not return to the UK, due to financial issues.
Event history
The idea for Sonisphere was first conceived by John Jackson in the late 90s. Jackson chose the name Sonisphere, from a combination of Sonic and Sphere. In 2008 Stuart Galbraith had formed business partnership with AEG Live called Kilimanjaro Live. John Jackson approached Stuart Galbraith with the idea of a pan-world touring festival that aligned with Kilimanjaro Live's plan for a UK festival.
Begin with the source’s own compact description: “Sonisphere Festival” is music festival. The dossier treats that line as a proposition to test through Sonisphere, Festival and music, not as a finished interpretation.
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The phrase “music festival” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Feb 17, 2026. The linked authority identifier is Q1463857. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2014, 2018 and 2008.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Sonisphere Festival” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.