Late icon receives special posthumous honour at London ceremony
The pair were pictured together, along with actress Tilda Swinton, in 2014
The 'Royals' singer took to Twitter to put down accusations
Pop star joins fans for an impromptu Tumblr Q&A
'Team Ball Player Thing' released in aid of Batten disease, a rare recessive neurodegenerative disorder
The Australian electronic producer was performing at the Los Angeles festival on Sunday night (August 23)
The live collaboration took place at Nationals Park in Washington DC on Monday (July 13)
Singer-songwriter previously teamed up with the UK duo at the 2014 Brit Awards
The New Zealand singer reportedly parted ways with manager Scott Maclachlan last month
The wax statue was unveiled in Los Angeles on Wednesday (May 13)