"Us Against The World", an original Westlife song, was the second single released in both Ireland and the UK from the band's ninth studio album, Back Home. This was officially confirmed by band member Nicky Byrne at an X Factor interview and through the band's official website. 　　The song was composed by Arnthor Birgisson, Rami Yacoub and Savan Kotecha. They've also contributed to the upbeat tracks on the Back Home album, namely "Something Right", "The Easy Way", and "Pictures In My Head". 　　"Us Against The World" was also dedicated to Westlife's fans worldwide to mark their continuous support. The band gave their first live performance of Us Against The World on the TV special, The Westlife Show Live, which was broadcast on December 15. 　　In the Philippines, both song and music video premiered on July 3, 2008, the band's anniversary date.