[3] The Sugababes are an English girl group composed of Mutya Buena, Keisha Buchanan, and Siobhán Donaghy, formed in 1998.

Since re-claiming the Sugababes name in 2019, the group have released their eighth studio album The Lost Tapes (2022), which contained "Flatline" and the leaked songs recorded almost ten years prior.

In September 2023, the group played their first concert at the O2 Arena in London, dubbed as "One Night Only", which sold-out and received positive reviews.

[6] Commenting on the tour, the Sugababes stated: "The last few years have been an absolute blast, and we can’t wait to hit the road together next spring!

During an appearance on The One Show in October 2024, the group revealed that they have been working on their ninth studio album with hopes to include new music on the tour's setlist.