The Big Reunion is a 2013 series of concerts featuring British pop groups Five, 911, Atomic Kitten, Honeyz, Liberty X and Blue, and Irish group B*Witched. The groups, who were big names in the UK pop music scene in the late 1990s and early 2000s, reunited for the ITV2 reality-documentary series The Big Reunion, a show which follows them meeting again for the first time in a decade and rehearsing ahead of their comeback performance.

911 are an English pop group consisting of Lee Brennan, Jimmy Constable and Simon "Spike" Dawbarn. They were formed in Glasgow in 1995 and released their debut single "Night to Remember" in May 1996. This was followed by their debut album The Journey in March 1997, which was certified Gold by the BPI in November 1997. 911 released two more Silver-certified albums, Moving On and There It Is, in 1998 and 1999, respectively. There It Is also produced their only UK number-one single, a cover of "A Little Bit More", which topped the UK Singles Chart in January 1999.