Now 39 and happily married to Stranger Things star David Harbour, Allen was 24-years old when the alleged incident took place during preparations for a charity fundraiser in 2009.
The alleged incident prompted Allen to get her own back at a later awards ceremony, but the singer insists she has since forgiven the unknown celebrity and addressed her publicly to apologise for being ‘particularly petty’.
‘All is forgiven on my part anyway. But she’s probably just finding out. So if you are listening and you recognise yourself in this story, I’m sorry. It was particularly petty.’