But where is the tour heading - and why was Cardiff chosen as the city where the brothers will perform for the first time together in almost 16 years? When does the tour start and where is it heading?, Nation World Oasis sends fans 'Supersonic' as long-awaited reunion tour starts in Cardiff It's the band's first performance in 16 years and will be followed by dates in the U.K., Ireland and beyond., Excitement is building in Cardiff as Oasis kickstart their long-awaited worldwide reunion tour in Wales' capital - their first concert in almost 16 years. Brothers Liam and Noel Gallagher will , Playing Cardiff’s Principality Stadium, the six-piece impressed at the start of what is arguably the most anticipated tour of the century, focusing overwhelmingly on songs from their 1990s , The Oasis Live '25 reunion tour marks the end of an almost 16-year split between the Gallagher brothers It's been almost 16 years since Oasis last performed live, following the band's dramatic , .