Welsh, English, Irish and Scottish rugby supporters have all made their way to Brisbane to support the Lions squad ahead of their first test against Australia.
The traditional foes have put aside their differences to support the Lions squad which is dominated by Welsh players.
Eight Welshmen are in the starting line up, one short of the record of nine.
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The band announced at a free concert on Friday that they would take over the event's Pyramid stage on Saturday June 25.
The victims were collecting permits and escorts a day after their home town was liberated from the extremists.
Scotland Yard said the male youths will appear in custody at Westminster Magistrates' Court on Saturday.