The bar was first introduced in 1962. In the UK, it was advertised with the line "A Hazelnut in Every Bite".
The chocolate bar was promoted in a series of radio adverts broadcast in 2002 with the strapline "A joy to eat, but a bitch to make". These adverts featured actors Simon Pegg and Mark Heap who both appeared in the cult British TV comedy Spaced.
The bar was removed from boxes of Celebrations in 2006, along with Twix (although Twix has subsequently been reintroduced).