Anniversary Month is a Seasonal element in My Singing Monsters that is manifested in the Jam Boree on Seasonal Shanty. Anniversary Month is also a celebration that is normally celebrated around September, however, the times vary from year to year. Check out the Special Occasions page for the dates and times of the past Anniversary Month seasons. See the Anniversary Month Celebration page for the Seasonal Event that occurs on Gold Island.
The list of monsters that are affiliated with the Anniversary Month element are listed below.
Anniversary Month 2021
Anniversary Month started on September 1st, and ran until October 4th.
Although the Anniversary Month has happened since 2013, this was the release of the Anniversary Month Element. It is the second Seasonal Element to not be available on a Natural Island and not be available on Gold Island, after Feast-Ember (however, the event occurs on Gold Island). While the event itself is one of the oldest in the game, the element for the event is one of the youngest. This is also the only Seasonal element to not be available on the island it is celebrated on. During the October 2021 Handler Hangout, Monster Handler Matt said the following: "The new sort of ideology for these new Seasonal Monsters is that they're gonna be the opposite of the original Seasonals - the first generation, if you will - and that's that they all started on their own Island and then made their way to Seasonal Shanty. We're going to do the opposite with these new Seasonal Monsters that we're discovering, and that they're gonna begin on Seasonal Shanty, and then find sort of a 'forever home' across the various Islands of the Monster World in subsequent appearances." It is unclear whether or not this means that Jam Boree will appear on Gold Island in its subsequent appearance.