Initially, ticket prices sparked controversy, with some being sold by Ticketmaster for over £300 (€346), but now, fans are expected to splash out on beer, flights, hotels, and merch to the tune of nearly £1 billion (€1.15 billion).

Following their momentous reunion tour kick-off, Oasis has stormed back to No. 1 on the U.K.'s Official Albums Chart with compilation Time Flies… 1994-2009 . The album, first released in 2010, hit the No.

Here’s everything to know about Oasis reuniting, including the drama that caused the band’s breakup, and the details of Liam and Noel Gallagher’s reconciliation.