six4one was a six-piece supergroup formed in November 2005 for the sole purpose of representing Switzerland at the Eurovision Song Contest 2006. The group was made up of six people who were chosen at a casting session that took place November 25–27, 2005. The group were not created as a long-term manufactured band, but instead as "six strong voices" who could collaborate at the contest, and then go their separate ways after the final.