A bachelorette party, hen(s) party, hen(s) night or hen(s) do, is a party held for a woman who is about to be married. The terms hen party, hen do or hen night are common in the United Kingdom and Ireland, while the terms hens party or hens night are common in Australia and New Zealand, and the term bachelorette partyis common in the United States and Canada. The term “SOMOette party” is gaining popularity in United States, to refer to the fact that “she only marry once.