Pet Shop Boys 'pulled out of Elton John and Olly Alexander's BRIT Awards performance to their song It's A Sin just DAYS before the event' The legend, 74, and Years & Years star, 30, teamed up for the event, leaving some fans to declare that their duet was 'amazing' and 'the highlight' of the night The single is in support of the Elton John AIDS Foundation, which was founded in 1992 and is one of the leading independent AIDS organisations in the world It has now been claimed that the duo were set to be joined by the Pet Shop Boys, who wrote song It's A Sin, but the band pulled out just days before the event