Post Malone has postponed his London concerns due to next week's Tube strikes - as unions hold firm on their demands to be paid more for less work.
Ticket platform Live Nation said it had been 'forced' into rescheduling two gigs by the American rapper at the the Tottenham Hotspur Stadium because it would be 'impossible' to get fans to and from the event without a Tube service.
Members of the Rail, Maritime and Transport union (RMT), including drivers, signallers and maintenance workers, are to launch a series of strikes over pay and conditions which will cause huge disruption to services.
The union is seeking a 32-hour working week - three hours fewer than present - combined with a pay rise, a demand Transport for London has branded 'neither practical nor affordable' given it is nearly £13billion in debt.
TfL, which has offered workers a 3.4 per cent pay rise, has warned there will be few or no services between Monday and Thursday, with some disruption on Sunday.
