Nadine Coyle, alongside Girls Aloud bandmates Cheryl, Kimberley Walsh, and Nicola Roberts, emotionally paid tribute to late bandmate Sarah Harding at the M&S Bank Arena in Liverpool during their final tour show. The tribute included a heartfelt rendition of 'I'll Stand By You,' with the band and audience joining in, commemorating Sarah who passed away in 2021 from breast cancer. The tour, fulfilling Sarah's wish, donated profits to The Sarah Harding Breast Cancer Appeal. Nadine was visibly emotional, wiping tears and seeking comfort during the performance, while Cheryl addressed a viral video about their hit song 'Love Machine.' The emotional conclusion of the concert featured the band huddling together, honoring Sarah's memory as they remembered her poignant words about their future together.