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 (apart from Blue, who had already been reunited since 2011), a show which follows them meeting again for the first time in a decade and rehearsing ahead of their comeback performance.