 Complete the following phrase:  In November 2007, Minogue released her tenth and much-discussed comeback album, X. The electro-styled album included contributions from Guy Chambers, Cathy Dennis, Bloodshy  Avant and Calvin Harris. The album received some criticism for the triviality of its subject matter in light of Minogues experiences with breast cancer. X and its lead single, 2 Hearts, entered at number one on the Australian albums and singles charts, respectively. In the United Kingdom, X initially attracted lukewarm sales, although its commercial performance eventually improved. Follow-up singles from the album, In My Arms and Wow, both peaked inside the top ten of the UK Singles Chart. In the US, the album was nominated at the 