Katy Perry sings along to Taylor Swift hit Bad Blood inspired by their feud as she attends the first night of popstar's Sydney Eras Tour show with Rita Ora

Katy Perry and Taylor Swift have proved that their epic feud is well and truly in the past as they cuddled up for a selfie in Australia on Friday evening, following the singer's concert at Sydney's Accor Stadium. Katy Perry posted a sweet selfie with Taylor Swift after attending her concert in Sydney on Friday evening Mother-of-one Katy watched Taylor's show from a VIP area with fellow singer Rita Ora Rita and her husband, Taika Waititi, cozied up for a photo with a sequin-clad Taylor backstage It's no secret that Katy and Taylor had a rather nasty falling out, with the latter even penning her 2015 song Bad Blood about their dispute - which began when Katy apparently tried to hire a bunch of Taylor's backup dancers and 'sabotage an entire arena tour.' Katy posted a video of herself dancing and singing along as Taylor performed Bad Blood, which is the 2015 song about their feud British singer Rita posed for a photo with Taylor's NFL player boyfriend Travis Kelce Rita and Katy appeared to be having a great time at the concert and both looked chic in their black attire Rita thanked Taylor for having her at her concert and gushed that the singer 'always delivers' 'The fact you added bad blood is everything,' one follower commented, while another wrote: 'the way she sang bad blood, without any bad vibes, they gave it to me everything, mothers mothering.' A third person posted: 'Not you posting bad blood that's so iconic,' while a fourth fan begged: 'WE NEED A TAYLOR SWIFT & KATY PERRY COLLABORATION PLEASE.' Then in May 2017, Katy seemingly retaliated to Taylor's Bad Blood track with her own single Swish Swish, which was also reportedly about their feud.